From e3fe9fa1d10264370c63e20756e5cbd2c1050f43 Mon Sep 17 00:00:00 2001 From: "Jeffrey H. Kingston" Date: Tue, 14 Sep 2010 20:36:08 +0000 Subject: Lout 3.20 tag. git-svn-id: http://svn.savannah.nongnu.org/svn/lout/tags/3.20@10 9365b830-b601-4143-9ba8-b4a8e2c3339c --- README | 8 +- blurb | 12 +- blurb.short | 2 +- c2lout.c | 916 --- data/standard.ld | 85 +- doc/README | 2 +- doc/design/README | 2 +- doc/design/outfile.ps | 11703 +++++++++++++++++++++++++++++++++++ doc/expert/README | 2 +- doc/expert/all | 4 +- doc/expert/exa_bibl | 4 +- doc/expert/outfile.ps | 16122 ++++++++++++++++++++++++++++++++++++++++++++++++ doc/expert/preface | 2 +- doc/slides/README | 2 +- doc/slides/all | 2 +- doc/slides/outfile.ps | 4473 ++++++++++++++ doc/user/README | 2 +- doc/user/all | 7 +- doc/user/cpp | 86 - doc/user/cpp_chan | 91 - doc/user/cpp_comm | 27 - doc/user/cpp_embe | 82 - doc/user/cpp_erro | 39 - doc/user/cpp_lone | 37 - doc/user/cpp_opti | 105 - doc/user/cpp_pipe | 57 - doc/user/cpp_prog | 35 - doc/user/cpp_tabs | 66 - doc/user/preface | 2 +- doc/user/prg | 103 + doc/user/prg_chan | 108 + doc/user/prg_comm | 27 + doc/user/prg_embe | 81 + doc/user/prg_erro | 39 + doc/user/prg_lone | 42 + doc/user/prg_opti | 101 + doc/user/prg_perl | 108 + doc/user/prg_pipe | 57 + doc/user/prg_prog | 35 + doc/user/prg_tabs | 66 + doc/user/user.ps | 5202 ++++++++++++++++ doc/user/vcpp | 1 - doc/user/vprg | 1 + externs.h | 4 +- include/README | 16 +- include/blue | 117 +- include/bluef | 318 +- include/cprint | 119 +- include/cprintf | 327 +- include/eiffel | 117 +- include/eiffelf | 318 +- include/perl | 102 + include/perlf | 354 ++ include/pod | 164 + include/podf | 513 ++ include/progf | 281 - man/prg2lout.1 | 8 + man/prg2lout.txt | 6 + prg2lout.c | 3608 ++++++++--- whatsnew | 8 +- z01.c | 2 +- z02.c | 2 +- z03.c | 2 +- z04.c | 2 +- z05.c | 2 +- z06.c | 2 +- z07.c | 2 +- z08.c | 16 +- z09.c | 2 +- z10.c | 2 +- z11.c | 9 +- z12.c | 88 +- z13.c | 2 +- z14.c | 2 +- z15.c | 2 +- z16.c | 2 +- z17.c | 18 +- z18.c | 2 +- z19.c | 2 +- z20.c | 2 +- z21.c | 2 +- z22.c | 3 +- z23.c | 2 +- z24.c | 2 +- z25.c | 2 +- z26.c | 2 +- z27.c | 2 +- z28.c | 2 +- z29.c | 2 +- z30.c | 2 +- z31.c | 2 +- z32.c | 2 +- z33.c | 2 +- z34.c | 2 +- z35.c | 2 +- z36.c | 2 +- z37.c | 2 +- z38.c | 2 +- z39.c | 2 +- z40.c | 3 +- z41.c | 2 +- z42.c | 2 +- z43.c | 2 +- z44.c | 2 +- z45.c | 2 +- z46.c | 2 +- z47.c | 2 +- z48.c | 2 +- 108 files changed, 43386 insertions(+), 3163 deletions(-) delete mode 100644 c2lout.c create mode 100644 doc/design/outfile.ps create mode 100644 doc/expert/outfile.ps create mode 100644 doc/slides/outfile.ps delete mode 100644 doc/user/cpp delete mode 100644 doc/user/cpp_chan delete mode 100644 doc/user/cpp_comm delete mode 100644 doc/user/cpp_embe delete mode 100644 doc/user/cpp_erro delete mode 100644 doc/user/cpp_lone delete mode 100644 doc/user/cpp_opti delete mode 100644 doc/user/cpp_pipe delete mode 100644 doc/user/cpp_prog delete mode 100644 doc/user/cpp_tabs create mode 100644 doc/user/prg create mode 100644 doc/user/prg_chan create mode 100644 doc/user/prg_comm create mode 100644 doc/user/prg_embe create mode 100644 doc/user/prg_erro create mode 100644 doc/user/prg_lone create mode 100644 doc/user/prg_opti create mode 100644 doc/user/prg_perl create mode 100644 doc/user/prg_pipe create mode 100644 doc/user/prg_prog create mode 100644 doc/user/prg_tabs create mode 100644 doc/user/user.ps delete mode 100644 doc/user/vcpp create mode 100644 doc/user/vprg create mode 100644 include/perl create mode 100644 include/perlf create mode 100644 include/pod create mode 100644 include/podf delete mode 100644 include/progf diff --git a/README b/README index 82749f0..e577102 100644 --- a/README +++ b/README @@ -1,5 +1,5 @@ -THE LOUT DOCUMENT FORMATTING SYSTEM (VERSION 3.17) -BASSER LOUT VERSION 3 COPYRIGHT (C) 1994, 1999 Jeffrey H. Kingston +THE LOUT DOCUMENT FORMATTING SYSTEM (VERSION 3.19) +BASSER LOUT VERSION 3 COPYRIGHT (C) 1994, 2000 Jeffrey H. Kingston Jeffrey H. Kingston Basser Department of Computer Science @@ -34,7 +34,7 @@ formatting system. It contains the following directories: hyph Lout hyphenation files (see hyph/README for info) include Lout packages (in Lout) locale Locale-specific error messages - man Lout and c2lout manual entries + man Lout and prg2lout manual entries maps Lout Character Mapping (LCM) files setup Lout setup files (in Lout) software Information about Lout-related software from elsewhere @@ -44,7 +44,7 @@ and the following files: READMEPDF A description of the PDF back end blurb A news blurb describing Lout blurb.short A short news blurb describing Lout - c2lout.c c2lout source code (all in one file) + prg2lout.c prg2lout source code (all in one file) externs.h z*.c Lout source code gnu.gpl A copy of the GNU General Public License makefile A makefile for installing Lout diff --git a/blurb b/blurb index 4c748a8..0c8e3f3 100644 --- a/blurb +++ b/blurb @@ -1,7 +1,7 @@ - THE LOUT DOCUMENT FORMATTING SYSTEM, VERSION 3.17 + THE LOUT DOCUMENT FORMATTING SYSTEM, VERSION 3.20 -Version 3.17 of the Lout document formatting system is now available +Version 3.20 of the Lout document formatting system is now available (free of charge). The system reads a high-level description of a document similar in style to LaTeX and produces a PostScript, PDF or plain text output file. @@ -12,7 +12,7 @@ EPS file inclusion and generation, equation formatting, tables, diagrams, rotation and scaling, sorted indexes, bibliographic databases, running headers and odd-even pages, automatic cross referencing, multilingual documents including hyphenation (most European languages are supported, -including Russian), formatting of C/C++ programs, and much more, all +including Russian), formatting of computer programs, and much more, all ready to use. Furthermore, Lout is easily extended with definitions which are very much easier to write than troff of TeX macros because Lout is a high-level language, the outcome of an eight-year research @@ -21,9 +21,9 @@ project that went back to the beginning. Lout is written in highly portable ANSI C. It is distributed under the GNU public license as follows: - ftp://ftp.cs.usyd.edu.au/jeff/lout/lout-3.17.tar.gz + ftp://ftp.cs.usyd.edu.au/jeff/lout/lout-3.20.tar.gz -In other words, in a gzipped tar file called "lout-3.17.tar.gz" in the +In other words, in a gzipped tar file called "lout-3.20.tar.gz" in the "jeff/lout" subdirectory of the home directory of "ftp ftp.cs.usyd.edu.au" with login name "ftp" or "anonymous" using any non-empty password. The distribution contains @@ -43,7 +43,7 @@ distribution contains For those who want to browse first, a PostScript version of the User's Guide may be found in the same ftp directory: - ftp://ftp.cs.usyd.edu.au/jeff/lout/lout-3.17.user.ps.gz + ftp://ftp.cs.usyd.edu.au/jeff/lout/lout-3.20.user.ps.gz Lout was designed and implemented by Jeffrey H. Kingston (jeff@cs.usyd.edu.au) of the Basser Department of Computer Science at the University of Sydney. diff --git a/blurb.short b/blurb.short index 1c31792..ea08e9f 100644 --- a/blurb.short +++ b/blurb.short @@ -9,7 +9,7 @@ formatting, tables, diagrams, rotation and scaling, sorted indexes, bibliographic databases, running headers and odd-even pages, automatic cross referencing, multilingual documents including hyphenation (most European languages are supported, including Russian), formatting of -C/C++ programs, and more. Lout may be extended by writing definitions +computer programs, and more. Lout may be extended by writing definitions which are much simpler than the equivalent troff of TeX macros. Lout is written in highly portable ANSI C and runs on most platforms. diff --git a/c2lout.c b/c2lout.c deleted file mode 100644 index e1f5bb1..0000000 --- a/c2lout.c +++ /dev/null @@ -1,916 +0,0 @@ -/*****************************************************************************/ -/* */ -/* C2LOUT: A PROGRAM TO CONVERT C AND C++ SOURCE INTO LOUT (VERSION 1.0) */ -/* COPYRIGHT (C) 1993 Jeffrey H. Kingston */ -/* */ -/* Jeffrey H. Kingston (jeff@cs.usyd.edu.au) */ -/* Basser Department of Computer Science */ -/* The University of Sydney 2006 */ -/* AUSTRALIA */ -/* */ -/* This program is free software; you can redistribute it and/or modify */ -/* it under the terms of the GNU General Public License as published by */ -/* the Free Software Foundation; either version 1, or (at your option) */ -/* any later version. */ -/* */ -/* This program is distributed in the hope that it will be useful, */ -/* but WITHOUT ANY WARRANTY; without even the implied warranty of */ -/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ -/* GNU General Public License for more details. */ -/* */ -/* You should have received a copy of the GNU General Public License */ -/* along with this program; if not, write to the Free Software */ -/* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */ -/* */ -/*****************************************************************************/ -#include -#include -#include - -#define C2LOUT_VERSION "c2lout Version 3.15 (May 1999)" -#define BOOLEAN unsigned -#define FALSE 0 -#define TRUE 1 -#define MAX_LINE 1024 - -/* print styles */ -#define NO_STYLE 0 -#define FIXED_STYLE 1 -#define VARYING_STYLE 2 -#define SYMBOL_STYLE 3 - -static char file_name[MAX_LINE]; /* current input file name */ -static int line_num; /* current input line number */ -static int line_pos; /* current input column number */ -static FILE *err_fp; /* where error messages go */ - -static BOOLEAN headers_option; /* TRUE if no -n option (headers) */ -static int style_option; /* value of -p option, or NO_STYLE */ -static char *font_option; /* value of -f option, else null */ -static char *size_option; /* value of -s option, else null */ -static char *line_option; /* value of -v option, else null */ -static char *tabin_option; /* value of -t option, else null */ -static char *tabout_option; /* value of -T option, else null */ - -static BOOLEAN tab_by_spacing; /* TRUE if using space chars to tab */ -static int tab_in; /* tab interval, value of -t option */ -static float tab_out; /* tab interval width (-T option) */ -static char tab_unit; /* unit of measurement for tab */ -static BOOLEAN Scan(); - -extern void ProcessStandAlone(char *fname, FILE *in_fp, FILE *out_fp); - -#define Error0(str) \ -{ \ - if( line_num > 0 ) \ - fprintf(err_fp, "c2lout %s %d,%d: ", file_name, line_num, line_pos);\ - else \ - fprintf(err_fp, "c2lout: "); \ - fprintf(err_fp, str); \ - fprintf(err_fp, "\n"); \ -} - -#define Error1(str, arg) \ -{ \ - if( line_num > 0 ) \ - fprintf(err_fp, "c2lout %s %d,%d: ", file_name, line_num, line_pos);\ - else \ - fprintf(err_fp, "c2lout: "); \ - fprintf(err_fp, str, arg); \ - fprintf(err_fp, "\n"); \ -} - -#define GetArg(arg, message, null_ok) \ -{ if( strcmp(argv[i]+2, "") != 0 ) \ - arg = argv[i]+2; \ - else if( !null_ok && i < argc-1 && *argv[i+1] != '-' ) \ - arg = argv[++i]; \ - else if( null_ok ) \ - arg = (char *) NULL; \ - else \ - { Error0(message); \ - exit(1); \ - } \ -} /* end GetArg */ - - -/*****************************************************************************/ -/* */ -/* main(argc, argv) */ -/* */ -/* Read command line and process each file in turn. */ -/* */ -/*****************************************************************************/ - -int main(int argc, char *argv[]) -{ FILE *in_fp, *out_fp = stdout; - BOOLEAN at_least_one_file, raw_seen; int i; - char *infilename, *outfilename, *errfilename, *str; - - /* read command line */ - in_fp = out_fp = NULL; - err_fp = stderr; - line_num = 0; - raw_seen = FALSE; - tab_by_spacing = TRUE; - style_option = NO_STYLE; - tab_in = 8; - tab_out = 3; - tab_unit = 'f'; - at_least_one_file = FALSE; - headers_option = TRUE; - font_option = size_option = line_option = - tabin_option = tabout_option = (char *) NULL; - for( i = 1; i < argc; i++ ) - { if( *argv[i] == '-' ) switch( *(argv[i]+1) ) - { - case 'r': - - if( i > 1 ) - { Error0("-r must be first if it occurs at all"); - exit(1); - } - raw_seen = TRUE; - break; - - - case 'i': - - /* read name of input file */ - if( !raw_seen ) - { Error0("-i illegal without -r"); - exit(1); - } - if( in_fp != NULL ) - { Error0("-i seen twice"); - exit(1); - } - GetArg(infilename, "usage: -i", FALSE); - - /* open the file */ - in_fp = fopen(infilename, "r"); - if( in_fp == NULL ) - { Error1("cannot open input file %s", infilename); - exit(1); - } - - /* initialize file position */ - strcpy(file_name, infilename); - line_num = 1; - line_pos = 0; - break; - - - case 'o': - - /* read name of output file */ - if( out_fp != NULL ) - { Error0("-o seen twice"); - exit(1); - } - GetArg(outfilename, "usage: -o", FALSE); - out_fp = fopen(outfilename, "w"); - if( out_fp == NULL ) - { Error1("cannot open output file %s", outfilename); - exit(1); - } - break; - - - case 'e': - - /* read name of error file */ - GetArg(errfilename, "usage: -e", FALSE); - err_fp = fopen(errfilename, "w"); - if( err_fp == NULL ) - { Error1("cannot open error file %s", errfilename); - exit(1); - } - break; - - - case 'p': - - /* read print style */ - if( raw_seen ) - { Error0("-p illegal with -r option"); - exit(1); - } - GetArg(str, "usage: -p", FALSE); - if( style_option != NO_STYLE ) - { Error0("-p option appears twice"); - exit(1); - } - else if( strcmp(str, "fixed") == 0 ) - { style_option = FIXED_STYLE; - } - else if( strcmp(str, "varying") == 0 ) - { style_option = VARYING_STYLE; - tab_by_spacing = FALSE; - } - else if( strcmp(str, "symbol") == 0 ) - { style_option = SYMBOL_STYLE; - tab_by_spacing = FALSE; - } - else - { Error1("unknown -p option %s", str); - exit(1); - } - break; - - - case 'f': - - /* read font family */ - if( raw_seen ) - { Error0("-f illegal with -r option"); - exit(1); - } - GetArg(font_option, "usage: -f", FALSE); - break; - - - case 's': - - /* read font size */ - if( raw_seen ) - { Error0("-s illegal with -r option"); - exit(1); - } - GetArg(size_option, "usage: -s", FALSE); - break; - - - case 'v': - - /* read line spacing */ - if( raw_seen ) - { Error0("-v illegal with -r option"); - exit(1); - } - GetArg(line_option, "usage: -v", FALSE); - break; - - - case 't': - - /* read tab interval */ - GetArg(tabin_option, "usage: -t", TRUE); - if( tabin_option != NULL && sscanf(tabin_option,"%d",&tab_in) != 1 ) - { Error0("usage: -t\n"); - exit(1); - } - if( tab_in <= 0 ) - { Error0("-t: tab interval must be greater than 0\n"); - exit(1); - } - break; - - - case 'T': - - /* read tab_out and tab_unit */ - GetArg(tabout_option, "usage: -T", TRUE); - if( tabout_option != NULL ) - { if( sscanf(tabout_option, "%f%c",&tab_out,&tab_unit) != 2 ) - { Error0("usage: -T\n"); - exit(1); - } - if( tab_out <= 0 || tab_out >= 50 ) - { Error0("-T: unreasonably large or small tab interval"); - exit(1); - } - if( tab_unit != 'c' && tab_unit != 'i' && tab_unit != 'p' && - tab_unit != 'm' && tab_unit != 'f' && tab_unit != 's' && - tab_unit != 'v' ) - { Error0("-T: tab unit must be one of cipmfsv\n"); - exit(1); - } - tab_by_spacing = FALSE; - } - break; - - - case 'n': - - if( raw_seen ) - { Error0("-n illegal with -r option"); - exit(1); - } - headers_option = FALSE; - break; - - - case 'V': - - if( raw_seen ) - { Error0("-V illegal with -r option"); - exit(1); - } - Error1("%s", C2LOUT_VERSION); - exit(0); - break; - - - case 'u': - - if( raw_seen ) - { Error0("-u illegal with -r option"); - exit(1); - } - Error0("usage: c2lout C-files or c2lout -r Lout-files"); - exit(0); - break; - - - default: - - Error1("unknown command line flag %s", argv[i]); - exit(1); - break; - - } - else - { - /* argument is source file, so open it */ - if( raw_seen ) - { Error0("file parameter illegal with -r flag!"); - exit(1); - } - at_least_one_file = TRUE; - in_fp = fopen(argv[i], "r"); - if( in_fp == NULL ) - { Error1("cannot open input file %s", argv[i]); - exit(1); - } - - /* initialize file position */ - strcpy(file_name, argv[i]); - line_num = 1; - line_pos = 0; - - ProcessStandAlone(argv[i], in_fp, out_fp == NULL ? stdout : out_fp); - } - } /* for */ - - /* raw case: filter in_fp to out_fp using Scan() */ - if( raw_seen ) - { - /* check that input and output files are open */ - if( in_fp == NULL ) - { Error0("-r: missing -i option"); - exit(1); - } - if( out_fp == NULL ) - { Error0("-r: missing -o option"); - exit(1); - } - - /* scan the file and leave unchanged if an error occurred */ - if( !Scan(in_fp, out_fp) ) exit(1); - } - - /* finish of non-raw case with end text */ - else if( at_least_one_file ) - fprintf(out_fp == NULL ? stdout : out_fp, "@End @Text\n"); - - return 0; -} /* end main */ - - -/*****************************************************************************/ -/* */ -/* ProcessStandAlone(fname, in_fp, out_fp) */ -/* */ -/* Process one file consisting completely of C code. */ -/* */ -/*****************************************************************************/ - -void ProcessStandAlone(char *fname, FILE *in_fp, FILE *out_fp) -{ static BOOLEAN first = TRUE; - char *style_str, *font_str, *size_str, *line_str, *face_str, - *tabin_str, *tabout_str; - - /* print heading information on out_fp */ - if( first ) - { - /* sort out the options' values */ - switch( style_option ) - { - - case NO_STYLE: - case FIXED_STYLE: - - style_str = "fixed"; - face_str = "Base"; - font_str = font_option != NULL ? font_option : "Courier"; - size_str = size_option != NULL ? size_option : "9p"; - line_str = line_option != NULL ? line_option : "1.1fx"; - tabin_str = tabin_option != NULL ? tabin_option : "8"; - tabout_str = tabout_option != NULL ? tabout_option : "8s"; - break; - - - case VARYING_STYLE: - - style_str = "varying"; - face_str = "Slope"; - font_str = font_option != NULL ? font_option : "Times"; - size_str = size_option != NULL ? size_option : "10p"; - line_str = line_option != NULL ? line_option : "1.1fx"; - tabin_str = tabin_option != NULL ? tabin_option : "8"; - tabout_str = tabout_option != NULL ? tabout_option : "3f"; - break; - - - case SYMBOL_STYLE: - - style_str = "symbol"; - face_str = "Slope"; - font_str = font_option != NULL ? font_option : "Times"; - size_str = size_option != NULL ? size_option : "10p"; - line_str = line_option != NULL ? line_option : "1.1fx"; - tabin_str = tabin_option != NULL ? tabin_option : "8"; - tabout_str = tabout_option != NULL ? tabout_option : "3f"; - break; - - - default: - - Error0("internal error in -p option"); - exit(1); - break; - } - - - /* now print the initial @Use clauses etc.*/ - fprintf(out_fp, "@SysInclude { cprint }\n"); - fprintf(out_fp, "@SysInclude { doc }\n"); - fprintf(out_fp, "@Use { @CP\n"); - fprintf(out_fp, " style { %s }\n", style_str); - fprintf(out_fp, " font { %s }\n", font_str); - fprintf(out_fp, " size { %s }\n", size_str); - fprintf(out_fp, " line { %s }\n", line_str); - fprintf(out_fp, " tabin { %s }\n", tabin_str); - fprintf(out_fp, " tabout { %s }\n", tabout_str); - fprintf(out_fp, "{}\n"); - fprintf(out_fp, "}\n"); - fprintf(out_fp, "@Document\n"); - fprintf(out_fp, " @InitialFont { \"%s\" \"%s\" \"%s\" }\n", - font_str, face_str, size_str); - fprintf(out_fp, " @InitialBreak { lines \"%s\" nohyphen }\n", line_str); - fprintf(out_fp, "//\n"); - fprintf(out_fp, "@Text @Begin\n\n"); - first = FALSE; - } - else fprintf(out_fp, "@NP\n\n"); - - /* print file name and contents */ - if( headers_option ) - fprintf(out_fp, "{ Times Bold \"+3p\" } @Font \"%s\"\n@DP\n", fname); - if( !Scan(in_fp, out_fp) ) exit(1); - -} /* end ProcessStandAlone */ - - -/*****************************************************************************/ -/* */ -/* EmitTab(out_fp) */ -/* */ -/* Emit the equivalent of one tab character, depending on whether we */ -/* are using spaces or Lout tab operators to simulate it. */ -/* */ -/*****************************************************************************/ - -void EmitTab(FILE *out_fp) -{ - if( tab_by_spacing ) - { putc(' ', out_fp); - while( line_pos % tab_in != 0 ) - { putc(' ', out_fp); - line_pos++; - } - } - else - { while( line_pos % tab_in != 0 ) - { line_pos++; - } - fprintf(out_fp, " $>%.1f%ct ", - (line_pos/tab_in) * tab_out, tab_unit); - } -} /* end EmitTab */ - - -/*****************************************************************************/ -/* */ -/* BOOLEAN Scan(in_fp, out_fp) */ -/* */ -/* Scan the C source beginning in file in_fp and write it in modified */ -/* Lout source form onto out_fp. Return TRUE if successful. */ -/* */ -/*****************************************************************************/ - -/* states of scanner */ -#define C_REGULAR 1 -#define C_SLASH 2 -#define C_COMMENT 3 -#define CPP_COMMENT 4 -#define LOUT_INSERT 5 -#define CPP_LOUT_INSERT 6 -#define LOUT_INSERT_STAR 7 -#define C_COMMENT_STAR 8 -#define C_STRING 9 -#define C_STRING_BACKSLASH 10 -#define C_CHAR 11 -#define C_CHAR_BACKSLASH 12 - -static BOOLEAN Scan(FILE *in_fp, FILE *out_fp) -{ int state, ch; - state = C_REGULAR; - while( (ch = getc(in_fp)) != EOF ) - { - if( ch == '\n' ) - { line_num++; - line_pos = 0; - } - else line_pos++; - - switch( state ) - { - - case C_REGULAR: /* in ordinary C code */ - - if( ch == '\f' ) - { fprintf(out_fp, "\n@NP\n"); - } - else if( ch == '\t' ) - { EmitTab(out_fp); - } - else if( ch == '#' ) - { fputs("$$", out_fp); - } - else if( ch == '\\' ) - { fputs("\"\\\\\"", out_fp); - } - else if( ch == '{' ) /*}*/ - { fputs("${", out_fp); /*}*/ - } - else if( ch == /*{*/ '}' ) - { /*{*/ fputs("$}", out_fp); - } - else if( ch == '@' ) - { Error0("@ character in C program text"); - return FALSE; - } - else if( ch == '/' ) - { state = C_SLASH; - } - else if( ch == '\'' ) - { fputs("{@L \"", out_fp); - state = C_CHAR; - } - else if( ch == '"' ) - { fputs("{@S \"", out_fp); /*}*/ - state = C_STRING; - } - else - { putc(ch, out_fp); - } - break; - - - case C_SLASH: /* in ordinary C code just after / */ - - if( ch == '*' ) - { int nextch = getc(in_fp); - if( nextch == EOF ) - { Error0("unexpected end-of-file"); - return FALSE; - } - else if( nextch == '@' ) - { state = LOUT_INSERT; - } - else - { ungetc(nextch, in_fp); - if( nextch == '\n' ) line_num--; - fputs("{@C \"/*", out_fp); - state = C_COMMENT; - } - } - else if( ch == '/' ) /* C++ comment */ - { int nextch = getc(in_fp); - if( nextch == EOF ) - { Error0("unexpected end-of-file"); - return FALSE; - } - else if( nextch == '@' ) - { state = CPP_LOUT_INSERT; - } - else - { ungetc(nextch, in_fp); - if( nextch == '\n' ) line_num--; - fputs("{@C \"//", out_fp); - state = CPP_COMMENT; - } - } - else - { putc('/', out_fp); - ungetc(ch, in_fp); - if( ch == '\n' ) line_num--; - state = C_REGULAR; - } - break; - - - case C_COMMENT: /* inside a C comment */ - - if( ch == '\t' ) - { fputs("\"}", out_fp); - EmitTab(out_fp); - fputs("{@C \"", out_fp); - } - else if( ch == '\n' ) - { int nextch = getc(in_fp); - if( nextch != EOF ) - { fputs("\"}\n{@C \"", out_fp); - } - ungetc(nextch, in_fp); - if( ch == '\n' ) line_num--; - } - else if( ch == '\\' ) - { fputs("\\\\", out_fp); - } - else if( ch == '"' ) - { fputs("\\\"", out_fp); - } - else if( ch == '*' ) - { putc(ch, out_fp); - state = C_COMMENT_STAR; - } - else - { putc(ch, out_fp); - } - break; - - - case CPP_COMMENT: /* inside a C++ comment */ - - if( ch == '\t' ) - { fputs("\"}", out_fp); - EmitTab(out_fp); - fputs("{@C \"", out_fp); - } - else if( ch == '\n' ) - { fputs("\"}\n", out_fp); - state = C_REGULAR; - } - else if( ch == '\\' ) - { fputs("\\\\", out_fp); - } - else if( ch == '"' ) - { fputs("\\\"", out_fp); - } - else - { putc(ch, out_fp); - } - break; - - - case LOUT_INSERT: /* inside C comment which is a Lout insert */ - - if( ch == '*' ) - { state = LOUT_INSERT_STAR; - } - else - { putc(ch, out_fp); - } - break; - - - case LOUT_INSERT_STAR: /* inside Lout insert comment just after * */ - - if( ch == '/' ) - { state = C_REGULAR; - } - else if( ch == '*' ) - { putc('*', out_fp); - } - else - { putc('*', out_fp); - putc(ch, out_fp); - state = LOUT_INSERT; - } - break; - - - case CPP_LOUT_INSERT: /* inside C++ comment which is a Lout insert */ - - if( ch == '\n' ) - { putc(ch, out_fp); - state = C_REGULAR; - } - else - { putc(ch, out_fp); - } - break; - - - case C_COMMENT_STAR: /* inside C comment just after * */ - - if( ch == '/' ) - { fputs("/\"}", out_fp); - state = C_REGULAR; - } - else if( ch == '*' ) - { putc(ch, out_fp); - } - else if( ch == '\t' ) - { fputs("\"}", out_fp); - EmitTab(out_fp); - fputs("{@C \"", out_fp); - state = C_COMMENT; - } - else if( ch == '\n' ) - { fputs("\"}\n{@C \"", out_fp); - state = C_COMMENT; - } - else if( ch == '\\' ) - { fputs("\\\\", out_fp); - state = C_COMMENT; - } - else if( ch == '"' ) - { fputs("\\\"", out_fp); - state = C_COMMENT; - } - else - { putc(ch, out_fp); - state = C_COMMENT; - } - break; - - - case C_STRING: /* inside a C string */ - - if( ch == '\t' ) - { Error0("replaced tab character in string by \\t"); - fputs("\\\\t", out_fp); - } - else if( ch == '\\' ) - { fputs("\\\\", out_fp); - state = C_STRING_BACKSLASH; - } - else if( ch == '"' ) - { /*{*/ fputs("\"}", out_fp); - state = C_REGULAR; - } - else if( ch == '\n' ) - { Error0("unterminated C string"); - /*{*/ fputs("\"}\n", out_fp); - state = C_REGULAR; - } - else putc(ch, out_fp); - break; - - - case C_STRING_BACKSLASH: /* inside a C string just after \ */ - - if( ch == '\t' ) - { Error0("replacing literal tab character after \\ by t"); - putc('t', out_fp); - state = C_STRING; - } - else if( ch == '\\' ) - { fputs("\\\\", out_fp); - state = C_STRING; - } - else if( ch == '"' ) - { fputs("\\\"", out_fp); - state = C_STRING; - } - else if( ch == '\n' ) - { Error0("multi-line string printed as two strings, sorry"); - fputs("\"}\n{@S \"", out_fp); - state = C_STRING; - } - else - { putc(ch, out_fp); - state = C_STRING; - } - break; - - - case C_CHAR: /* inside char literal */ - - if( ch == '\t' ) - { Error0("replacing literal tab character by \\t"); - fputs("\\\\t", out_fp); - } - else if( ch == '\\' ) - { fputs("\\\\", out_fp); - state = C_CHAR_BACKSLASH; - } - else if( ch == '"' ) - { fputs("\\\"", out_fp); - } - else if( ch == '\n' ) - { Error0("unterminated C character constant"); - fputs("\"}\n", out_fp); - state = C_REGULAR; - } - else if( ch == '\'' ) - { /*{*/ fputs("\"}", out_fp); - state = C_REGULAR; - } - else putc(ch, out_fp); - break; - - - - case C_CHAR_BACKSLASH: /* inside quoted char just after \ */ - - if( ch == '"' ) - { fputs("\\\"", out_fp); - state = C_CHAR; - } - else if( ch == '\\' ) - { fputs("\\\\", out_fp); - state = C_CHAR; - } - else if( ch == '\n' ) - { Error0("unterminated C character constant"); - /*{*/ fputs("\"}\n", out_fp); - state = C_REGULAR; - } - else - { putc(ch, out_fp); - state = C_CHAR; - } - break; - - - default: - - Error1("unknown case %d", state); - exit(1); - break; - - } - } - - /* check that final state is reasonable */ - switch( state ) - { - case C_REGULAR: /* in ordinary C code */ - - break; - - - case C_SLASH: /* in ordinary C code just after / */ - - fputs("/\n", out_fp); - break; - - - case C_COMMENT: /* inside a C comment */ - case CPP_COMMENT: /* inside a C++ comment */ - case C_COMMENT_STAR: /* inside C comment just after * */ - - /*{*/ fputs("\"}\n", out_fp); - Error0("C text ended inside a comment"); - break; - - - case LOUT_INSERT: /* inside C comment which is a Lout insert */ - case CPP_LOUT_INSERT: /* inside C++ comment which is a Lout insert */ - case LOUT_INSERT_STAR: /* inside Lout insert comment just after * */ - - Error0("C text ended inside a Lout inclusion"); - exit(1); - break; - - - case C_STRING: /* inside a C string */ - case C_STRING_BACKSLASH: /* inside a C string just after \ */ - - /*{*/ fputs("\"}\n", out_fp); - Error0("C text ended inside a string literal"); - break; - - - case C_CHAR: /* inside char literal (has been quoted) */ - case C_CHAR_BACKSLASH: /* inside quoted char just after \ */ - - /*{*/ fputs("\"}\n", out_fp); - Error0("C text ended inside a character literal"); - break; - - - default: - - Error0("unknown final state"); - exit(1); - break; - } - - return TRUE; -} /* end Scan */ diff --git a/data/standard.ld b/data/standard.ld index c003905..e56d469 100644 --- a/data/standard.ld +++ b/data/standard.ld @@ -36,6 +36,7 @@ Italian @Yield { Contenuto } Norwegian @Yield { Innhold } Polish @Yield { Spis tre{@Char sacute}ci } + Portuguese @Yield { Conte{@Char uacute}do } Russian @Yield { "\363\317\304\305\322\326\301\316\311\305" } Slovenian @Yield { Vsebina } Spanish @Yield { Contenidos } @@ -56,6 +57,7 @@ Italian @Yield { Riferimenti } Norwegian @Yield { Referanser } Polish @Yield { Odno{@Char sacute}niki } + Portuguese @Yield { Refer{@Char ecircumflex}ncias } Russian @Yield { "\354\311\324\305\322\301\324\325\322\301" } Slovenian @Yield { Reference } Spanish @Yield { Referencias } @@ -76,6 +78,7 @@ Italian @Yield { Bibliografia } Norwegian @Yield { Litteratur } Polish @Yield { Literatura } + Portuguese @Yield { Bibliografia } Russian @Yield { "\354\311\324\305\322\301\324\325\322\301" } Slovenian @Yield { Literatura } Spanish @Yield { Bibliograf{@Char iacute}a } @@ -96,6 +99,7 @@ Italian @Yield { Figura } Norwegian @Yield { Figur } Polish @Yield { Rysunek } + Portuguese @Yield { Figura } Russian @Yield { "\362\311\323\325\316\317\313" } Slovenian @Yield { Slika } Spanish @Yield { Figura } @@ -116,6 +120,7 @@ Italian @Yield { Elenco delle Figure } Norwegian @Yield { ?? } Polish @Yield { Spis rysunk{@Char oacute}w } + Portuguese @Yield { Lista de Figuras } Russian @Yield { "\363\320\311\323\317\313 \311\314\314\300\323\324\322\301\303\311\312" } Slovenian @Yield { Seznam slik } Spanish @Yield { ?? } @@ -136,6 +141,7 @@ Italian @Yield { Tabella } Norwegian @Yield { Tabell } Polish @Yield { Tabela } + Portuguese @Yield { Tabela } Russian @Yield { "\364\301\302\314\311\303\301" } Slovenian @Yield { Tabela } Spanish @Yield { Tabla } @@ -156,6 +162,7 @@ Italian @Yield { Elenco delle Tabelle } Norwegian @Yield { ?? } Polish @Yield { Spis tabel } + Portuguese @Yield { Lista de Tabelas } Russian @Yield { "\363\320\311\323\317\313 \324\301\302\314\311\303" } Slovenian @Yield { Seznam tabel } Spanish @Yield { ?? } @@ -176,6 +183,7 @@ Italian @Yield { Definizione } Norwegian @Yield { ?? } Polish @Yield { Definicja } + Portuguese @Yield { Defini{@Char ccedila}{@Char atilde}o } Russian @Yield { "\357\320\322\305\304\305\314\305\316\311\305" } Slovenian @Yield { Definicija } Spanish @Yield { ?? } @@ -196,6 +204,7 @@ Italian @Yield { Lemma } Norwegian @Yield { ?? } Polish @Yield { Lemat } + Portuguese @Yield { Lema } Russian @Yield { "\354\305\315\315\301" } Slovenian @Yield { Lema } Spanish @Yield { ?? } @@ -216,6 +225,7 @@ Italian @Yield { Teorema } Norwegian @Yield { ?? } Polish @Yield { Twierdzenie } + Portuguese @Yield { Teorema } Russian @Yield { "\364\305\317\322\305\315\301" } Slovenian @Yield { Teorem } Spanish @Yield { ?? } @@ -236,6 +246,7 @@ Italian @Yield { Proposizione } Norwegian @Yield { ?? } Polish @Yield { Za{@Char lslash}o{@Char zdotabove}enie } + Portuguese @Yield { Proposi{@Char ccedilla}{@Char atilde}o } Russian @Yield { "\360\322\305\304\314\317\326\305\316\311\305" } Slovenian @Yield { Predpostavka } Spanish @Yield { ?? } @@ -256,6 +267,7 @@ Italian @Yield { Corollario } Norwegian @Yield { ?? } Polish @Yield { Wniosek } + Portuguese @Yield { Corol{@Char aacute}rio } Russian @Yield { "\363\314\305\304\323\324\327\311\305" } Slovenian @Yield { Sklep } Spanish @Yield { ?? } @@ -276,6 +288,7 @@ Italian @Yield { Esempio } Norwegian @Yield { ?? } Polish @Yield { Przyk{@Char lslash}ad } + Portuguese @Yield { Exemplo } Russian @Yield { "\360\322\311\315\305\322" } Slovenian @Yield { Primer } Spanish @Yield { ?? } @@ -296,6 +309,7 @@ Italian @Yield { Affermazione } Norwegian @Yield { ?? } Polish @Yield { Stwierdzenie } + Portuguese @Yield { Crédito } Russian @Yield { "\365\324\327\305\322\326\304\305\316\311\305" } Slovenian @Yield { Trditev } Spanish @Yield { ?? } @@ -316,6 +330,7 @@ Italian @Yield { Dimostrazione } Norwegian @Yield { ?? } Polish @Yield { Dow{@Char oacute}d } + Portuguese @Yield { Prova } Russian @Yield { "\344\317\313\301\332\301\324\305\314\330\323\324\327\317" } Slovenian @Yield { Dokaz } Spanish @Yield { ?? } @@ -336,6 +351,7 @@ Italian @Yield { Riassunto } Norwegian @Yield { Sammendrag } Polish @Yield { Abstrakt } + Portuguese @Yield { Resumo } Russian @Yield { "\341\302\323\324\322\301\313\324" } #correct! Slovenian @Yield { Povzetek } Spanish @Yield { Sinopsis } @@ -356,6 +372,7 @@ Italian @Yield { Prefazione } Norwegian @Yield { Forord } Polish @Yield { Przedmowa } + Portuguese @Yield { Pref{@Char aacute}cio } Russian @Yield { "\360\322\305\304\311\323\314\317\327\311\305" } Slovenian @Yield { Predgovor } Spanish @Yield { Prefacio } @@ -376,6 +393,7 @@ Italian @Yield { ?? } Norwegian @Yield { ?? } Polish @Yield { ?? } + Portuguese @Yield { Abrevia{@Char ccedilla}{@Char otilde}es } Russian @Yield { ?? } Slovenian @Yield { ?? } Spanish @Yield { ?? } @@ -396,6 +414,7 @@ Italian @Yield { Introduzione } Norwegian @Yield { Innledning } Polish @Yield { Wst{@Char eogonek}p } + Portuguese @Yield { Introdu{@Char ccedilla}{@Char atilde}o } Russian @Yield { "\367\327\305\304\305\316\311\305" } Slovenian @Yield { Uvod } Spanish @Yield { Introducci{@Char oacute}n } @@ -416,6 +435,7 @@ Italian @Yield { Capitolo } Norwegian @Yield { Kapittel } Polish @Yield { Rozdzia{@Char lslash} } + Portuguese @Yield { Cap{@Char iacute}tolo } Russian @Yield { "\347\314\301\327\301" } Slovenian @Yield { Poglavje } Spanish @Yield { Cap{@Char iacute}tulo } @@ -436,6 +456,7 @@ Italian @Yield { Appendice } Norwegian @Yield { Tillegg } Polish @Yield { Dodatek } + Portuguese @Yield { Apêndice } Russian @Yield { "\360\322\311\314\317\326\305\316\311\305" } Slovenian @Yield { Dodatek } Spanish @Yield { Ap{@Char eacute}ndice } @@ -456,6 +477,7 @@ Italian @Yield { Lecture } Norwegian @Yield { Lecture } Polish @Yield { Lecture } + Portuguese @Yield { Conferência } Russian @Yield { Lecture } Slovenian @Yield { Lecture } Spanish @Yield { Lecture } @@ -476,6 +498,7 @@ Italian @Yield { Indice } Norwegian @Yield { Register } Polish @Yield { Skorowidz } + Portuguese @Yield { {@Char Iacute}ndice Remissivo } Russian @Yield { "\351\316\304\305\313\323" } Slovenian @Yield { Indeks } Spanish @Yield { Indice } @@ -494,6 +517,7 @@ German @Yield { Ohne Titel } Hungarian @Yield { C{@Char iacute}m n{@Char eacute}lk{@Char udieresis}l } Polish @Yield { Bez tytu{@Char lslash}u } + Portuguese @Yield { Sem t{@Char iacute}tulo } Italian @Yield { Senza titolo } Norwegian @Yield { Utel tittel } Russian @Yield { "\342\305\332 \316\301\332\327\301\316\311\321" } @@ -516,6 +540,7 @@ Italian @Yield { pagine } Norwegian @Yield { sider } Polish @Yield { strony } + Portuguese @Yield { p{@Char aacute}ginas } Russian @Yield { "\323\324\322\301\316\311\303\331" } Slovenian @Yield { strani } Spanish @Yield { p{@Char aacute}ginas } @@ -536,6 +561,7 @@ Italian @Yield { pagina } Norwegian @Yield { side } Polish @Yield { strona } + Portuguese @Yield { p{@Char aacute}gina } Russian @Yield { "\323\324\322\301\316\311\303\301" } Slovenian @Yield { stran } Spanish @Yield { p{@Char aacute}gina } @@ -556,6 +582,7 @@ Italian @Yield { Senza editore } Norwegian @Yield { Upublisert } Polish @Yield { Bez wydawcy } + Portuguese @Yield { Sem editora } Russian @Yield { "\302\305\332 \311\332\304\301\324\305\314\321" } Slovenian @Yield { Brez zalo{@Char zcaron}nika } Spanish @Yield { Sin editor } @@ -577,6 +604,7 @@ Norwegian @Yield { Tekn. Rapp. } Russian @Yield { "\324\305\310. \304\317\313\314\301\304" } Polish @Yield { Sprawozdanie techniczne } + Portuguese @Yield { Relat{@Char oacute}rio t{@Char eacute}cnico } Slovenian @Yield { Tehn. por. } Spanish @Yield { ?? } Swedish @Yield { Tekn. rap. } @@ -596,6 +624,7 @@ Italian @Yield { Tesi di dottorato } Norwegian @Yield { Doktorgradsavhandling } Polish @Yield { Praca doktorska } + Portuguese @Yield { Tese de doutoramento } Russian @Yield { "\313\301\316\304\311\304\301\324\323\313\301\321" "\304\311\323\323\305\322\324\301\303\311\321" } Slovenian @Yield { Doktorska disertacija } @@ -617,6 +646,7 @@ Italian @Yield { Tesi di laurea } Norwegian @Yield { Diplomoppgave } Polish @Yield { Praca magisterska } + Portuguese @Yield { Disserta{@Char ccedilla}{@Char atilde}o de mestrado } Russian @Yield { "\304\311\320\314\317\315\316\301\321" "\322\301\302\317\324\301" } Slovenian @Yield { Diploma } @@ -638,6 +668,7 @@ Italian @Yield { In } Norwegian @Yield { I } Polish @Yield { W } + Portuguese @Yield { Em } Russian @Yield { "\327" } Slovenian @Yield { V } Spanish @Yield { En } @@ -653,7 +684,7 @@ EnglishUK @Yield { ctd. } Finnish @Yield { ?? } French @Yield { suite } - German @Yield { ?? } + German @Yield { Fortsetzung } Hungarian @Yield { folyt. } Italian @Yield { cont. } Norwegian @Yield { ?? } @@ -679,6 +710,7 @@ Italian @Yield { a.m. } Norwegian @Yield { a.m. } Polish @Yield { a.m. } + Portuguese @Yield { a.m. } Russian @Yield { a.m. } Slovenian @Yield { a.m. } Spanish @Yield { a.m. } @@ -699,6 +731,7 @@ Italian @Yield { p.m. } Norwegian @Yield { p.m. } Polish @Yield { p.m. } + Portuguese @Yield { p.m. } Russian @Yield { p.m. } Slovenian @Yield { p.m. } Spanish @Yield { p.m. } @@ -719,6 +752,7 @@ Italian @Yield { am } Norwegian @Yield { am } Polish @Yield { am } + Portuguese @Yield { am } Russian @Yield { am } Slovenian @Yield { am } Spanish @Yield { am } @@ -739,6 +773,7 @@ Italian @Yield { pm } Norwegian @Yield { pm } Polish @Yield { pm } + Portuguese @Yield { pm } Russian @Yield { pm } Slovenian @Yield { pm } Spanish @Yield { pm } @@ -1193,6 +1228,7 @@ Italian @Yield { @Char ae } Norwegian @Yield { @Char ae } Polish @Yield { ?? } + Portuguese @Yield { ?? } Russian @Yield { ?? } Slovenian @Yield { ?? } Spanish @Yield { ?? } @@ -1212,6 +1248,7 @@ Italian @Yield { ?? } Norwegian @Yield { @Char oslash } Polish @Yield { ?? } + Portuguese @Yield { ?? } Russian @Yield { ?? } Slovenian @Yield { ?? } Spanish @Yield { ?? } @@ -1231,6 +1268,7 @@ Italian @Yield { ?? } Norwegian @Yield { @Char aring } Polish @Yield { ?? } + Portuguese @Yield { ?? } Russian @Yield { ?? } Slovenian @Yield { ?? } Spanish @Yield { ?? } @@ -1278,6 +1316,7 @@ Italian @Yield { @Char AE } Norwegian @Yield { @Char AE } Polish @Yield { ?? } + Portuguese @Yield { ?? } Russian @Yield { ?? } Slovenian @Yield { ?? } Spanish @Yield { ?? } @@ -1297,6 +1336,7 @@ Italian @Yield { ?? } Norwegian @Yield { @Char Oslash } Polish @Yield { ?? } + Portuguese @Yield { ?? } Russian @Yield { ?? } Slovenian @Yield { ?? } Spanish @Yield { ?? } @@ -1316,6 +1356,7 @@ Italian @Yield { ?? } Norwegian @Yield { @Char Aring } Polish @Yield { ?? } + Portuguese @Yield { ?? } Russian @Yield { ?? } Slovenian @Yield { ?? } Spanish @Yield { ?? } @@ -1336,6 +1377,7 @@ Italian @Yield { gennaio } Norwegian @Yield { januar } Polish @Yield { stycze{@Char nacute} } + Portuguese @Yield { janeiro } Russian @Yield { "\321\316\327\301\322\321" } Slovenian @Yield { januar } Spanish @Yield { Enero } @@ -1355,6 +1397,7 @@ Italian @Yield { febbraio } Norwegian @Yield { februar } Polish @Yield { luty } + Portuguese @Yield { fevereiro } Russian @Yield { "\306\305\327\322\301\314\321" } Slovenian @Yield { februar } Spanish @Yield { Febrero } @@ -1374,6 +1417,7 @@ Italian @Yield { marzo } Norwegian @Yield { mars } Polish @Yield { marzec } + Portuguese @Yield { mar{@Char ccedilla}o } Russian @Yield { "\315\301\322\324\301" } Slovenian @Yield { marec } Spanish @Yield { Marzo } @@ -1393,6 +1437,7 @@ Italian @Yield { aprile } Norwegian @Yield { april } Polish @Yield { kwiecie{@Char nacute} } + Portuguese @Yield { abril } Russian @Yield { "\301\320\322\305\314\321" } Slovenian @Yield { april } Spanish @Yield { Abril } @@ -1412,6 +1457,7 @@ Italian @Yield { maggio } Norwegian @Yield { mai } Polish @Yield { maj } + Portuguese @Yield { maio } Russian @Yield { "\315\301\321" } Slovenian @Yield { maj } Spanish @Yield { Mayo } @@ -1431,6 +1477,7 @@ Italian @Yield { giugno } Norwegian @Yield { juni } Polish @Yield { czerwiec } + Portuguese @Yield { junho } Russian @Yield { "\311\300\316\321" } Slovenian @Yield { junij } Spanish @Yield { Junio } @@ -1451,6 +1498,7 @@ Italian @Yield { luglio } Norwegian @Yield { juli } Polish @Yield { lipiec } + Portuguese @Yield { julho } Russian @Yield { "\311\300\314\321" } Slovenian @Yield { julij } Spanish @Yield { Julio } @@ -1470,6 +1518,7 @@ Italian @Yield { agosto } Norwegian @Yield { august } Polish @Yield { sierpie{@Char nacute} } + Portuguese @Yield { agosto } Russian @Yield { "\301\327\307\325\323\324\301" } Slovenian @Yield { avgust } Spanish @Yield { Agosto } @@ -1489,6 +1538,7 @@ Italian @Yield { settembre } Norwegian @Yield { september } Polish @Yield { wrzesie{@Char nacute} } + Portuguese @Yield { setembro } Russian @Yield { "\323\305\316\324\321\302\322\321" } Slovenian @Yield { september } Spanish @Yield { Septiembre } @@ -1508,6 +1558,7 @@ Italian @Yield { ottobre } Norwegian @Yield { oktober } Polish @Yield { pa{@Char zacute}dziernik } + Portuguese @Yield { outubro } Russian @Yield { "\317\313\324\321\302\322\321" } Slovenian @Yield { oktober } Spanish @Yield { Octubre } @@ -1527,6 +1578,7 @@ Italian @Yield { novembre } Norwegian @Yield { november } Polish @Yield { listopad } + Portuguese @Yield { novembro } Russian @Yield { "\316\317\321\302\322\321" } Slovenian @Yield { november } Spanish @Yield { Noviembre } @@ -1546,6 +1598,7 @@ Italian @Yield { dicembre } Norwegian @Yield { desember } Polish @Yield { grudzie{@Char nacute} } + Portuguese @Yield { dezembro } Russian @Yield { "\304\305\313\301\302\322\321" } Slovenian @Yield { december } Spanish @Yield { Diciembre } @@ -1566,6 +1619,7 @@ Italian @Yield { gen } Norwegian @Yield { jan } Polish @Yield { sty } + Portuguese @Yield { jan } Russian @Yield { "\321\316\327" } Slovenian @Yield { jan } Spanish @Yield { Ene } @@ -1585,6 +1639,7 @@ Italian @Yield { feb } Norwegian @Yield { feb } Polish @Yield { luty } + Portuguese @Yield { fev } Russian @Yield { "\306\305\327" } Slovenian @Yield { feb } Spanish @Yield { Feb } @@ -1604,6 +1659,7 @@ Italian @Yield { mar } Norwegian @Yield { mar } Polish @Yield { marz } + Portuguese @Yield { mar } Russian @Yield { "\315\301\322" } Slovenian @Yield { mar } Spanish @Yield { Mar } @@ -1623,6 +1679,7 @@ Italian @Yield { apr } Norwegian @Yield { apr } Polish @Yield { kwie } + Portuguese @Yield { abr } Russian @Yield { "\301\320\322" } Slovenian @Yield { apr } Spanish @Yield { Abr } @@ -1642,6 +1699,7 @@ Italian @Yield { mag } Norwegian @Yield { mai } Polish @Yield { maj } + Portuguese @Yield { mai } Russian @Yield { "\315\301\321" } Slovenian @Yield { maj } Spanish @Yield { May } @@ -1661,6 +1719,7 @@ Italian @Yield { giu } Norwegian @Yield { jun } Polish @Yield { czer } + Portuguese @Yield { jun } Russian @Yield { "\311\300\316\321" } Slovenian @Yield { jun } Spanish @Yield { Jun } @@ -1680,6 +1739,7 @@ Italian @Yield { lug } Norwegian @Yield { jul } Polish @Yield { lip } + Portuguese @Yield { jul } Russian @Yield { "\311\300\314\321" } Slovenian @Yield { jul } Spanish @Yield { Jul } @@ -1699,6 +1759,7 @@ Italian @Yield { ago } Norwegian @Yield { aug } Polish @Yield { sier } + Portuguese @Yield { ago } Russian @Yield { "\301\327\307" } Slovenian @Yield { avg } Spanish @Yield { Ago } @@ -1718,6 +1779,7 @@ Italian @Yield { set } Norwegian @Yield { sep } Polish @Yield { wrze } + Portuguese @Yield { set } Russian @Yield { "\323\305\316" } Slovenian @Yield { sep } Spanish @Yield { Sep } @@ -1737,6 +1799,7 @@ Italian @Yield { ott } Norwegian @Yield { okt } Polish @Yield { pa{@Char zacute} } + Portuguese @Yield { out } Russian @Yield { "\317\313\324" } Slovenian @Yield { okt } Spanish @Yield { Oct } @@ -1756,6 +1819,7 @@ Italian @Yield { nov } Norwegian @Yield { nov } Polish @Yield { list } + Portuguese @Yield { nov } Russian @Yield { "\316\317\321" } Slovenian @Yield { nov } Spanish @Yield { Nov } @@ -1775,6 +1839,7 @@ Italian @Yield { dic } Norwegian @Yield { des } Polish @Yield { gru } + Portuguese @Yield { dez } Russian @Yield { "\304\305\313" } Slovenian @Yield { dec } Spanish @Yield { Dic } @@ -1795,6 +1860,7 @@ Italian @Yield { domenica } Norwegian @Yield { s{@Char oslash}ndag } Polish @Yield { niedziela } + Portuguese @Yield { Domingo } Russian @Yield { "\327\317\323\313\322\305\323\305\316\330\305" } Slovenian @Yield { nedelja } Spanish @Yield { Domingo } @@ -1814,6 +1880,7 @@ Italian @Yield { luned{@Char igrave} } Norwegian @Yield { mandag } Polish @Yield { poniedzia{@Char lslash}ek } + Portuguese @Yield { Segunda } Russian @Yield { "\320\317\316\305\304\305\314\330\316\311\313" } Slovenian @Yield { ponedeljek } Spanish @Yield { Lunes } @@ -1833,6 +1900,7 @@ Italian @Yield { marted{@Char igrave} } Norwegian @Yield { tirsdag } Polish @Yield { wtorek } + Portuguese @Yield { Ter{@Char ccedilla}a } Russian @Yield { "\327\324\317\322\316\311\313" } Slovenian @Yield { torek } Spanish @Yield { Martes } @@ -1852,6 +1920,7 @@ Italian @Yield { mercoled{@Char igrave} } Norwegian @Yield { onsdag } Polish @Yield { {@Char sacute}roda } + Portuguese @Yield { Quarta } Russian @Yield { "\323\322\305\304\301" } Slovenian @Yield { sreda } Spanish @Yield { Mi{@Char eacute}rcoles } @@ -1871,6 +1940,7 @@ Italian @Yield { gioved{@Char igrave} } Norwegian @Yield { torsdag } Polish @Yield { czwartek } + Portuguese @Yield { Quinta } Russian @Yield { "\336\305\324\327\305\322\307" } Slovenian @Yield { {@Char ccaron}etrtek } Spanish @Yield { Jueves } @@ -1890,6 +1960,7 @@ Italian @Yield { venerd{@Char igrave} } Norwegian @Yield { fredag } Polish @Yield { pi{@Char aogonek}tek } + Portuguese @Yield { Sexta } Russian @Yield { "\320\321\324\316\311\303\301" } Slovenian @Yield { petek } Spanish @Yield { Viernes } @@ -1909,6 +1980,7 @@ Italian @Yield { sabato } Norwegian @Yield { l{@Char oslash}rdag } Polish @Yield { sobota } + Portuguese @Yield { S{@Char aacute}bado } Russian @Yield { "\323\325\302\302\317\324\301" } Slovenian @Yield { sobota } Spanish @Yield { S{@Char aacute}bado } @@ -1929,6 +2001,7 @@ Italian @Yield { dom } Norwegian @Yield { s{@Char oslash}n } Polish @Yield { niedz } + Portuguese @Yield { Dom } Russian @Yield { "\327\323" } Slovenian @Yield { ned } Spanish @Yield { Dom } @@ -1948,6 +2021,7 @@ Italian @Yield { lun } Norwegian @Yield { man } Polish @Yield { pon } + Portuguese @Yield { Seg } Russian @Yield { "\320\316" } Slovenian @Yield { pon } Spanish @Yield { Lun } @@ -1967,6 +2041,7 @@ Italian @Yield { mar } Norwegian @Yield { tir } Polish @Yield { wto } + Portuguese @Yield { Ter } Russian @Yield { "\327\324" } Slovenian @Yield { tor } Spanish @Yield { Mar } @@ -1986,6 +2061,7 @@ Italian @Yield { mer } Norwegian @Yield { ons } Polish @Yield { {@Char sacute}ro } + Portuguese @Yield { Qua } Russian @Yield { "\323\322" } Slovenian @Yield { sre } Spanish @Yield { Mie } @@ -2005,6 +2081,7 @@ Italian @Yield { gio } Norwegian @Yield { tor } Polish @Yield { czw } + Portuguese @Yield { Qui } Russian @Yield { "\336\324" } Slovenian @Yield { cet } Spanish @Yield { Jue } @@ -2024,6 +2101,7 @@ Italian @Yield { ven } Norwegian @Yield { fre } Polish @Yield { pi{@Char aogonek}t } + Portuguese @Yield { Sex } Russian @Yield { "\320\324" } Slovenian @Yield { pet } Spanish @Yield { Vie } @@ -2043,6 +2121,7 @@ Italian @Yield { sab } Norwegian @Yield { l{@Char oslash}r } Polish @Yield { sob } + Portuguese @Yield { S{@Char aacute}b } Russian @Yield { "\323\302" } Slovenian @Yield { sob } Spanish @Yield { Sab } @@ -2167,6 +2246,7 @@ Italian @Yield { @DayNum @Month @Year } Norwegian @Yield { @DayNum @Month, @Year } Polish @Yield { @DayNum @Month @Year } + Portuguese @Yield { @DayNum "de" @Month "de" @Year } Russian @Yield { @DayNum @Month @Year } Slovenian @Yield { @DayNum @Month @Year } Spanish @Yield { @DayNum "de" @Month, @Year } @@ -2187,11 +2267,10 @@ Italian @Yield { @ShortHour.@Minute } Norwegian @Yield { @ShortHour.@Minute } Polish @Yield { @ShortHour.@Minute } + Portuguese @Yield { @ShortHour:@Minute } Russian @Yield { @ShortHour.@Minute } Slovenian @Yield { @ShortHour.@Minute } Spanish @Yield { @ShortHour:@Minute } Swedish @Yield { @ShortHour.@Minute } } } } - - diff --git a/doc/README b/doc/README index 62f2260..791ceb2 100644 --- a/doc/README +++ b/doc/README @@ -15,4 +15,4 @@ slides A Practical Introduction to the Lout Document Formatting user A User's Guide to the Lout Document Formatting System Jeffrey H. Kingston -17 November 1997 +8 April 2000 diff --git a/doc/design/README b/doc/design/README index 1e7a8af..87c660d 100644 --- a/doc/design/README +++ b/doc/design/README @@ -22,4 +22,4 @@ messages (although changing the paper size might produce one or two benign ones). Jeffrey H. Kingston -17 September 1999 +8 April 2000 diff --git a/doc/design/outfile.ps b/doc/design/outfile.ps new file mode 100644 index 0000000..904d913 --- /dev/null +++ b/doc/design/outfile.ps @@ -0,0 +1,11703 @@ +%!PS-Adobe-3.0 +%%Creator: Basser Lout Version 3.20 (April 2000) +%%CreationDate: Sat Apr 8 14:53:13 2000 +%%DocumentData: Binary +%%DocumentNeededResources: (atend) +%%DocumentSuppliedResources: (atend) +%%DocumentMedia: A4 595 842 0 white () +%%PageOrder: Ascend +%%Pages: (atend) +%%BoundingBox: 0 0 595 842 +%%EndComments + +%%BeginProlog +%%BeginResource: procset LoutStartUp +/m { 3 1 roll moveto show } bind def +/mo { 3 1 roll moveto true charpath stroke } bind def +/s { exch currentpoint exch pop moveto show } bind def +/so { exch currentpoint exch pop moveto true charpath stroke } bind def +/k { exch neg 0 rmoveto show } bind def +/ko { exch neg 0 rmoveto true charpath stroke } bind def +/ul { gsave setlinewidth dup 3 1 roll + moveto lineto stroke grestore } bind def +/in { 1440 mul } def +/cm { 567 mul } def +/pt { 20 mul } def +/em { 120 mul } def +/sp { louts mul } def +/vs { loutv mul } def +/ft { loutf mul } def +/dg { } def + +/LoutGraphic { + /louts exch def + /loutv exch def + /loutf exch def + /ymark exch def + /xmark exch def + /ysize exch def + /xsize exch def +} def + +/LoutGr2 { gsave translate LoutGraphic gsave } def + +/LoutFont +{ findfont exch scalefont setfont +} bind def + +/LoutRecode { + { findfont dup length dict begin + {1 index /FID ne {def} {pop pop} ifelse} forall + /Encoding exch def + currentdict end definefont pop + } + stopped pop +} bind def + +/BeginEPSF { + /LoutEPSFState save def + /dict_count countdictstack def + /op_count count 1 sub def + userdict begin + /showpage { } def + 0 setgray 0 setlinecap + 1 setlinewidth 0 setlinejoin + 10 setmiterlimit [] 0 setdash newpath + /languagelevel where + { pop languagelevel + 1 ne + { false setstrokeadjust false setoverprint + } if + } if +} bind def + +/EndEPSF { + count op_count sub { pop } repeat + countdictstack dict_count sub { end } repeat + LoutEPSFState restore +} bind def +%%EndResource + +%%BeginResource: encoding vec2 +/vec2 [ +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/space /exclam /quotedbl /numbersign /dollar /percent /ampersand /quoteright +/parenleft /parenright /asterisk /plus /comma /hyphen /period /slash +/zero /one /two /three /four /five /six /seven +/eight /nine /colon /semicolon /less /equal /greater /question +/at /A /B /C /D /E /F /G +/H /I /J /K /L /M /N /O +/P /Q /R /S /T /U /V /W +/X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore +/quoteleft /a /b /c /d /e /f /g +/h /i /j /k /l /m /n /o +/p /q /r /s /t /u /v /w +/x /y /z /braceleft /bar /braceright /asciitilde /.notdef +/quotesinglbase /quotedblbase /ellipsis /OE /oe /quotedblleft /quotedblright /fi +/fl /endash /emdash /bullet /dagger /daggerdbl /florin /fraction +/dotlessi /grave /acute /circumflex /tilde /macron /breve /dotaccent +/dieresis /.notdef /ring /cedilla /.notdef /hungarumlaut /ogonek /caron +/space /exclamdown /cent /sterling /currency /yen /brokenbar /section +/dieresis /copyright /ordfeminine /guillemotleft /logicalnot /hyphen /registered /macron +/degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph /periodcentered +/cedilla /onesuperior /ordmasculine /guillemotright /onequarter /onehalf /threequarters /questiondown +/Agrave /Aacute /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla +/Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex /Idieresis +/Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply +/Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn /germandbls +/agrave /aacute /acircumflex /atilde /adieresis /aring /ae /ccedilla +/egrave /eacute /ecircumflex /edieresis /igrave /iacute /icircumflex /idieresis +/eth /ntilde /ograve /oacute /ocircumflex /otilde /odieresis /divide +/oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn /ydieresis +] def +%%EndResource + +%%BeginResource: procset LoutTabPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/tabf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Tab % +% % +% To assist in avoiding name clashes, the names % +% of all these symbols begin with "ltab". % +% % +% Jeffrey H. Kingston % +% 24 September 1991 % +% 22 December 1992 % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +% linewidth ltabhs - +% horizontal single line +/ltabhs +{ 0 0 moveto xsize 0 lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhsp - +% horizontal single line with projecting ends +/ltabhsp +{ 0 0 moveto xsize 0 lineto + setlinewidth 2 setlinecap stroke +} def + +% linewidth ltabhd - +% horizontal double line +/ltabhd +{ dup dup + 0 0 moveto xsize 0 lineto + 0 exch 3 mul moveto xsize exch 3 mul lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhdb - +% horizontal double line below mark +/ltabhdb +{ dup dup + 0 0 moveto xsize 0 lineto + 0 exch -3 mul moveto xsize exch -3 mul lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhdnw - +% horizontal double line with northwest corner +/ltabhdnw +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + xsize exch 3 mul moveto + -3 mul exch 3 mul lineto + -3 mul 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdne - +% horizontal double line with northeast corner +/ltabhdne +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + 0 exch 3 mul moveto + 3 mul xsize add exch 3 mul lineto + 3 mul xsize add 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdsw - +% horizontal double line with southwest corner +/ltabhdsw +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + xsize exch -3 mul moveto + -3 mul exch -3 mul lineto + -3 mul 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdse - +% horizontal double line with southeast corner +/ltabhdse +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + 0 exch -3 mul moveto + 3 mul xsize add exch -3 mul lineto + 3 mul xsize add 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabvs - +% vertical single line +/ltabvs +{ 0 0 moveto 0 ysize lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabvd - +% vertical double line +/ltabvd +{ dup dup + 0 0 moveto 0 ysize lineto + -3 mul 0 moveto -3 mul ysize lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabvdr - +% vertical double line to right of mark +/ltabvdr +{ dup dup + 0 0 moveto 0 ysize lineto + 3 mul 0 moveto 3 mul ysize lineto + setlinewidth 0 setlinecap stroke +} def +%%EndResource + +%%BeginResource: procset LoutFigPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/figf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Fig Jeffrey H. Kingston % +% Version 2.0 (includes CIRCUM label) January 1992 % +% % +% To assist in avoiding name clashes, the names of all symbols % +% defined here begin with "lfig". However, this is not feasible % +% with user-defined labels and some labels used by users. % +% % +% is two numbers, a point. % +% is one number, a length % +% is one number, an angle in degrees % +% is one number, the preferred length of a dash % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +errordict begin + /handleerror + { + { /Times-Roman findfont 8 pt scalefont setfont + 0 setgray 4 pt 4 pt moveto + $error /errorname get + dup lfigdict exch known + { lfigdict exch get } + { 30 string cvs } ifelse + show + ( Command: ) show + $error /command get 30 string cvs show + } stopped {} if + showpage stop + } def +end + +% concat strings: lfigconcat +% must be defined outside lfigdict since used in lfigpromotelabels +/lfigconcat +{ 2 copy length exch length add string + dup 0 4 index putinterval + dup 3 index length 3 index putinterval + 3 1 roll pop pop +} def + +% lfigdebugprint - +% must be defined outside lfigdict since used in arbitrary places +% /lfigdebugprint +% { print +% (; operand stack:\n) print +% count copy +% count 2 idiv +% { == +% (\n) print +% } repeat +% (\n) print +% } def + +/lfigdict 120 dict def +lfigdict begin + +% error messages +/dictfull (dictfull error: too many labels?) def +/dictstackoverflow (dictstackoverflow error: labels nested too deeply?) def +/execstackoverflow (execstackoverflow error: figure nested too deeply?) def +/limitcheck (limitcheck error: figure nested too deeply or too large?) def +/syntaxerror (syntaxerror error: syntax error in text of figure?) def +/typecheck (typecheck error: syntax error in text of figure?) def +/undefined (undefined error: unknown or misspelt label?) def +/VMError (VMError error: run out of memory?) def + +% push pi onto stack: - lfigpi +/lfigpi 3.14159 def + +% arc directions +/clockwise false def +/anticlockwise true def + +% maximum of two numbers: lfigmax +/lfigmax { 2 copy gt { pop } { exch pop } ifelse } def + +% minimum of two numbers: lfigmin +/lfigmin { 2 copy lt { pop } { exch pop } ifelse } def + +% add two points: lfigpadd +/lfigpadd { exch 3 1 roll add 3 1 roll add exch } def + +% subtract first point from second: lfigpsub +/lfigpsub { 3 2 roll sub 3 1 roll exch sub exch } def + +% max two points: lfigpmax +/lfigpmax { exch 3 1 roll lfigmax 3 1 roll lfigmax exch } def + +% min two points: lfigpmin +/lfigpmin { exch 3 1 roll lfigmin 3 1 roll lfigmin exch } def + +% scalar multiplication: lfigpmul +/lfigpmul { dup 3 1 roll mul 3 1 roll mul exch } def + +% point at angle and distance: lfigatangle +/lfigatangle { 2 copy cos mul 3 1 roll sin mul lfigpadd } def + +% angle from one point to another: lfigangle +/lfigangle { lfigpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def + +% distance between two points: lfigdistance +/lfigdistance { lfigpsub dup mul exch dup mul add sqrt } def + +% difference in x coords: lfigxdistance +/lfigxdistance { pop 3 1 roll pop sub } def + +%difference in y coords: lfigydistance +/lfigydistance { 3 1 roll pop sub exch pop } def + +% stroke a solid line: lfigsolid - +/lfigsolid +{ pop pop [] 0 setdash stroke +} def + +% stroke a lfigdashed line: lfigdashed - +/lfigdashed +{ 2 copy div 2 le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch dup ] 0 setdash } + { dup [ exch 4 2 roll 2 copy div + 1 sub 2 div ceiling dup 4 1 roll + 1 add mul sub exch div ] 0 setdash + } ifelse stroke +} def + +% stroke a lfigcdashed line: lfigcdashed - +/lfigcdashed +{ 2 copy le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch dup ] dup 0 get 2 div setdash } + { dup [ 4 2 roll exch 2 copy exch div + 2 div ceiling div 1 index sub + ] exch 2 div setdash + } ifelse stroke +} def + +% stroke a dotted line: lfigdotted - +/lfigdotted +{ 2 copy le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch 0 exch ] 0 setdash } + { 1 index exch div ceiling div + [ 0 3 2 roll ] 0 setdash + } ifelse stroke +} def + +% stroke a noline line: lfignoline - +/lfignoline +{ pop pop +} def + +% painting (i.e. filling): - lfigwhite - (etc.) +/lfignopaint { } def +/lfignochange { fill } def +/lfigdarkblue { 0.0 0.0 0.5 setrgbcolor fill } def +/lfigblue { 0.0 0.0 1.0 setrgbcolor fill } def +/lfiglightblue { 0.5 0.5 1.0 setrgbcolor fill } def +/lfigdarkgreen { 0.0 0.5 0.0 setrgbcolor fill } def +/lfiggreen { 0.0 1.0 0.0 setrgbcolor fill } def +/lfiglightgreen { 0.5 1.0 0.5 setrgbcolor fill } def +/lfigdarkred { 0.5 0.0 0.0 setrgbcolor fill } def +/lfigred { 1.0 0.0 0.0 setrgbcolor fill } def +/lfiglightred { 1.0 0.5 0.5 setrgbcolor fill } def +/lfigdarkcyan { 0.0 0.5 0.5 setrgbcolor fill } def +/lfigcyan { 0.0 1.0 1.0 setrgbcolor fill } def +/lfiglightcyan { 0.5 1.0 1.0 setrgbcolor fill } def +/lfigdarkmagenta { 0.5 0.0 0.5 setrgbcolor fill } def +/lfigmagenta { 1.0 0.0 1.0 setrgbcolor fill } def +/lfiglightmagenta { 1.0 0.5 1.0 setrgbcolor fill } def +/lfigdarkyellow { 0.5 0.5 0.0 setrgbcolor fill } def +/lfigyellow { 1.0 1.0 0.0 setrgbcolor fill } def +/lfiglightyellow { 1.0 1.0 0.5 setrgbcolor fill } def +/lfigdarkgray { 0.2 0.2 0.2 setrgbcolor fill } def +/lfiggray { 0.5 0.5 0.5 setrgbcolor fill } def +/lfiglightgray { 0.8 0.8 0.8 setrgbcolor fill } def +/lfigdarkgrey { 0.2 0.2 0.2 setrgbcolor fill } def +/lfiggrey { 0.5 0.5 0.5 setrgbcolor fill } def +/lfiglightgrey { 0.8 0.8 0.8 setrgbcolor fill } def +/lfigblack { 0.0 0.0 0.0 setrgbcolor fill } def +/lfigwhite { 1.0 1.0 1.0 setrgbcolor fill } def + +% line caps (and joins, not currently used) +/lfigbutt 0 def +/lfiground 1 def +/lfigprojecting 2 def +/lfigmiter 0 def +/lfigbevel 2 def + +% shape and labels of the @Box symbol +/lfigbox +{ + 0 0 /SW lfigpointdef + xsize 0 /SE lfigpointdef + xsize ysize /NE lfigpointdef + 0 ysize /NW lfigpointdef + SE 0.5 lfigpmul /S lfigpointdef + NW 0.5 lfigpmul /W lfigpointdef + W SE lfigpadd /E lfigpointdef + S NW lfigpadd /N lfigpointdef + NE 0.5 lfigpmul /CTR lfigpointdef + [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @CurveBox symbol +/lfigcurvebox +{ + + xsize 0.5 mul ysize 0.5 mul /CTR lfigpointdef + xsize 0.5 mul 0 /S lfigpointdef + xsize ysize 0.5 mul /E lfigpointdef + xsize 0.5 mul ysize /N lfigpointdef + 0 ysize 0.5 mul /W lfigpointdef + + xmark 0.293 mul xmark 0.293 mul /SW lfigpointdef + xsize xmark 0.293 mul sub xmark 0.293 mul /SE lfigpointdef + xsize xmark 0.293 mul sub ysize xmark 0.293 mul sub /NE lfigpointdef + xmark 0.293 mul ysize xmark 0.293 mul sub /NW lfigpointdef + + [ xsize ysize 0.5 lfigpmul xmark /lfigcurveboxcircum cvx ] lfigcircumdef + + xmark 0 + xsize xmark sub 0 + [ xsize xmark sub xmark ] + xsize xmark + xsize ysize xmark sub + [ xsize xmark sub ysize xmark sub ] + xsize xmark sub ysize + xmark ysize + [ xmark ysize xmark sub ] + 0 ysize xmark sub + 0 xmark + [ xmark xmark ] + xmark 0 +} def + +% shadow of the @ShadowBox symbol +% its shape and labels are done, somewhat inaccurately, with lfigbox +/lfigshadow +{ xmark 2 mul 0 moveto xsize 0 lineto + xsize ysize xmark 2 mul sub lineto + xsize xmark sub ysize xmark 2 mul sub lineto + xsize xmark sub xmark lineto + xmark 2 mul xmark lineto closepath fill +} def + +% shape and labels of the @Square symbol +/lfigsquare +{ + xsize ysize 0.5 lfigpmul /CTR lfigpointdef + CTR xsize xsize ysize ysize lfigpmax 0.5 lfigpmul lfigpadd /NE lfigpointdef + CTR 0 0 CTR NE lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef + CTR 0 0 CTR NE lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef + CTR 0 0 CTR NE lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef + SW 0.5 lfigpmul SE 0.5 lfigpmul lfigpadd /S lfigpointdef + NW 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /N lfigpointdef + SW 0.5 lfigpmul NW 0.5 lfigpmul lfigpadd /W lfigpointdef + SE 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /E lfigpointdef + [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @Diamond symbol +/lfigdiamond +{ + xsize 0 0.5 lfigpmul /S lfigpointdef + 0 ysize 0.5 lfigpmul /W lfigpointdef + S W lfigpadd /CTR lfigpointdef + CTR W lfigpadd /N lfigpointdef + CTR S lfigpadd /E lfigpointdef + [ xsize ysize 0.5 lfigpmul /lfigdiamondcircum cvx ] lfigcircumdef + S E N W S +} def + +% shape and labels of the @Ellipse symbol +/lfigellipse +{ + xsize 0 0.5 lfigpmul /S lfigpointdef + 0 ysize 0.5 lfigpmul /W lfigpointdef + S W lfigpadd /CTR lfigpointdef + CTR W lfigpadd /N lfigpointdef + CTR S lfigpadd /E lfigpointdef + CTR xsize 0 0.3536 lfigpmul lfigpadd 0 ysize 0.3536 lfigpmul lfigpadd /NE lfigpointdef + 0 ysize 0.3536 lfigpmul CTR xsize 0 0.3536 lfigpmul lfigpadd lfigpsub /SE lfigpointdef + xsize 0 0.3536 lfigpmul CTR lfigpsub 0 ysize 0.3536 lfigpmul lfigpadd /NW lfigpointdef + 0 ysize 0.3536 lfigpmul xsize 0 0.3536 lfigpmul CTR lfigpsub lfigpsub /SW lfigpointdef + [ xsize ysize 0.5 lfigpmul /lfigellipsecircum cvx ] lfigcircumdef + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @Circle symbol +/lfigcircle +{ + xsize ysize 0.5 lfigpmul /CTR lfigpointdef + CTR xsize 0 ysize 0 lfigpmax 0.5 lfigpmul lfigpadd /E lfigpointdef + CTR 0 0 CTR E lfigdistance 45 lfigatangle lfigpadd /NE lfigpointdef + CTR 0 0 CTR E lfigdistance 90 lfigatangle lfigpadd /N lfigpointdef + CTR 0 0 CTR E lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef + CTR 0 0 CTR E lfigdistance 180 lfigatangle lfigpadd /W lfigpointdef + CTR 0 0 CTR E lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef + CTR 0 0 CTR E lfigdistance 270 lfigatangle lfigpadd /S lfigpointdef + CTR 0 0 CTR E lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef + [ S E lfigpsub /lfigellipsecircum cvx ] lfigcircumdef + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @HLine and @HArrow symbols +/lfighline +{ + 0 ymark lfigprevious /FROM lfigpointdef + xsize ymark lfigprevious /TO lfigpointdef +} def + +% shape and labels of the @VLine and @VArrow symbols +/lfigvline +{ + xmark ysize lfigprevious /FROM lfigpointdef + xmark 0 lfigprevious /TO lfigpointdef +} def + +% points of a polygon around base with given no of sides, vert init angle: +% figpolygon ... +/lfigpolygon +{ xsize ysize 0.5 lfigpmul /CTR lfigpointdef + 90 sub CTR 2 copy lfigmax 5 3 roll + [ 4 copy pop /lfigpolycircum cvx ] lfigcircumdef + exch dup 360 exch div exch + 1 1 3 2 roll + { 4 string cvs (P) exch lfigconcat cvn + 6 copy pop pop lfigatangle 2 copy 10 2 roll + 3 2 roll lfigpointdef + dup 3 1 roll add exch + } for + pop lfigatangle +} def + +% next array element: lfiggetnext true +% or false +/lfiggetnext +{ 2 copy exch length ge + { false } + { 2 copy get exch 1 add exch true } ifelse +} def + +% check whether thing is number: lfigisnumbertype +/lfigisnumbertype +{ dup type dup + /integertype eq exch /realtype eq or +} def + +% check whether thing is an array: lfigisarraytype +/lfigisarraytype { dup type /arraytype eq } def + +% get next item: lfiggetnextitem 0 +% or 1 +% or 2 +/lfiggetnextitem +{ lfiggetnext + { lfigisarraytype + { 1 + } + { lfigisnumbertype + { 3 1 roll + lfiggetnext + { lfigisnumbertype + { 4 3 roll exch 2 + } + { pop 3 2 roll pop 0 + } ifelse + } + { 3 2 roll pop 0 + } ifelse + } + { pop 0 + } ifelse + } ifelse + } + { 0 + } ifelse +} def + +% set arc path: bool x1 y1 x2 y2 x0 y0 lfigsetarc +% the path goes from x1 y1 to x2 y2 about centre x0 y0, +% anticlockwise if bool is true else clockwise. +% The orientations of backwards pointing and forwards pointing +% arrowheads are returned in the two angles, and +% the length of the arc is returned in . +/lfigsetarc +{ + 20 dict begin + matrix currentmatrix 8 1 roll + 2 copy translate 2 copy 8 2 roll + 4 2 roll lfigpsub 6 2 roll lfigpsub + dup /y1 exch def dup mul /y1s exch def + dup /x1 exch def dup mul /x1s exch def + dup /y2 exch def dup mul /y2s exch def + dup /x2 exch def dup mul /x2s exch def + + y1s y2s eq + { -1 + } + { y1s x2s mul y2s x1s mul sub y1s y2s sub div + } ifelse + /da exch def + + x1s x2s eq + { -1 + } + { x1s y2s mul x2s y1s mul sub x1s x2s sub div + } ifelse + /db exch def + + da 0 gt db 0 gt and + { /LMax da sqrt db sqrt lfigmax def + /scalex da sqrt LMax div def + /scaley db sqrt LMax div def + scalex scaley scale + 0 0 LMax + 0 0 x1 scalex mul y1 scaley mul lfigangle + 0 0 x2 scalex mul y2 scaley mul lfigangle + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + dup sin scaley mul exch cos scalex mul atan + 2 index 2 index + { 90 add } { 90 sub } ifelse + dup sin scaley mul exch cos scalex mul atan + 5 2 roll % res1 res2 ang1 ang2 anticlockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if lfigpi mul LMax mul 180 div + } + { 0 0 x1 y1 lfigdistance 0 0 x2 y2 lfigdistance eq + 0 0 x1 y1 lfigdistance 0 gt and + { 0 0 + 0 0 x1 y1 lfigdistance + 0 0 x1 y1 lfigangle + 0 0 x2 y2 lfigangle + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + 2 index 2 index + { 90 add } { 90 sub } ifelse + 5 2 roll % res1 res2 ang1 ang2 clockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if lfigpi mul 0 0 x1 y1 lfigdistance mul 180 div + } + { x2 y2 lineto pop + x2 y2 x1 y1 lfigangle + x1 y1 x2 y2 lfigangle + x1 y1 x2 y2 lfigdistance + } ifelse + } ifelse + 4 -1 roll setmatrix + end +} def + +% lfigsetcurve: set up a Bezier curve from x0 y0 to x3 y3 +% and return arrowhead angles and length of curve (actually 0) +% x0 y0 x1 y1 x2 y2 x3 y3 lfigsetcurve +/lfigsetcurve +{ 8 copy curveto pop pop + lfigangle + 5 1 roll + 4 2 roll lfigangle + exch + 0 +} def + +% lfigpaintpath: paint a path of the given shape +% /paint [ shape ] lfigpaintpath - +/lfigpaintpath +{ + 10 dict begin + 0 newpath + /prevseen false def + /curveseen false def + { lfiggetnextitem + dup 0 eq { pop exit } + { 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /curveseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr + lfigsetcurve pop pop pop + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + lfigsetarc pop pop pop + } ifelse + } + { xcurr ycurr lineto + } ifelse + } + { xcurr ycurr moveto + } ifelse + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop pop pop cvx exec + end +} def + +% stroke a path of the given shape in the given linestyle and dash length. +% Return the origin and angle of the backward and forward arrow heads. +% dashlength /linestyle [shape] lfigdopath [ ] [ ] +/lfigdopath +{ + 10 dict begin + 0 + /prevseen false def + /curveseen false def + /backarrow [] def + /fwdarrow [] def + { + lfiggetnextitem + dup 0 eq { pop exit } + { + 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /prevseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { newpath xprev yprev moveto + curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr lfigsetcurve + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + lfigsetarc + } ifelse + } + { xcurr ycurr lineto + xcurr ycurr xprev yprev lfigangle dup 180 sub + xprev yprev xcurr ycurr lfigdistance + } ifelse + 6 index 6 index cvx exec + [ xprev yprev 5 -1 roll ] + backarrow length 0 eq + { /backarrow exch def } + { pop } ifelse + [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def + } if + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop + pop pop pop pop + backarrow length 0 eq { [ 0 0 0 ] } { backarrow } ifelse + fwdarrow length 0 eq { [ 0 0 0 ] } { fwdarrow } ifelse + end +} def + +% lfigdoarrow: draw an arrow head of given form +% dashlength /lstyle /pstyle hfrac height width [ ] lfigdoarrow - +/lfigdoarrow +{ matrix currentmatrix 8 1 roll + dup 0 get 1 index 1 get translate + 2 get rotate + [ 2 index neg 2 index 0 0 + 3 index 3 index neg + 1 index 10 index mul 0 + 7 index 7 index ] + 4 1 roll pop pop pop + dup 3 1 roll + gsave lfigpaintpath grestore lfigdopath pop pop + setmatrix +} def + +% arrow head styles +/lfigopen 0.0 def +/lfighalfopen 0.5 def +/lfigclosed 1.0 def + +% stroke no arrows, forward, back, and both +/lfignoarrow { pop pop pop pop pop pop pop pop } def +/lfigforward { 7 -1 roll lfigdoarrow pop } def +/lfigback { 8 -2 roll pop lfigdoarrow } def +/lfigboth { 8 -1 roll 7 copy lfigdoarrow pop 7 -1 roll lfigdoarrow } def + +% lfigprevious: return previous point on path +/lfigprevious +{ lfigisnumbertype + { 2 copy } + { lfigisarraytype + { 2 index 2 index } + { 0 0 } + ifelse + } ifelse +} def + +% label a point in 2nd top dictionary: /name lfigpointdef - +/lfigpointdef +{ + % (Entering lfigpointdef) lfigdebugprint + [ 4 2 roll transform + /itransform cvx ] cvx + currentdict end + 3 1 roll + % currentdict length currentdict maxlength lt + % { def } + % { exec moveto (too many labels) show stop } + % ifelse + def + begin + % (Leaving lfigpointdef) lfigdebugprint +} def + +% promote labels from second top to third top dictionary +% lfigpromotelabels - +/lfigpromotelabels +{ + % (Entering lfigpromotelabels) lfigdebugprint + currentdict end exch currentdict end + { exch 20 string cvs 2 index + (@) lfigconcat exch lfigconcat cvn exch def + } forall pop begin + % (Leaving lfigpromotelabels) lfigdebugprint +} def + +% show labels (except CIRCUM): - lfigshowlabels - +/lfigshowlabels +{ + % (Entering lfigshowlabels) lfigdebugprint + currentdict end + currentdict + { 1 index 20 string cvs (CIRCUM) search % if CIRCUM in key + { pop pop pop pop pop } + { pop cvx exec 2 copy + newpath 1.5 pt 0 360 arc + 0 setgray fill + /Times-Roman findfont 8 pt scalefont setfont + moveto 0.2 cm 0.1 cm rmoveto 20 string cvs show + } + ifelse + } forall + begin + % (Leaving lfigshowlabels) lfigdebugprint +} def + +% fix an angle to 0 <= res < 360: lfigfixangle +/lfigfixangle +{ + % (Entering lfigfixangle) lfigdebugprint + { dup 0 ge { exit } if + 360 add + } loop + { dup 360 lt { exit } if + 360 sub + } loop + % (Leaving lfigfixangle) lfigdebugprint +} def + +% find point on circumference of box: alpha a b lfigboxcircum x y +/lfigboxcircum +{ + % (Entering lfigboxcircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + 0 0 a b lfigangle /theta exch def + + % if alpha <= theta, return (a, a*tan(alpha)) + alpha theta le + { a a alpha sin mul alpha cos div } + { + % else if alpha <= 180 - theta, return (b*cot(alpha), b) + alpha 180 theta sub le + { b alpha cos mul alpha sin div b } + { + % else if alpha <= 180 + theta, return (-a, -a*tan(alpha)) + alpha 180 theta add le + { a neg a neg alpha sin mul alpha cos div } + { + % else if alpha <= 360 - theta, return (-b*cot(alpha), -b) + alpha 360 theta sub le + { b neg alpha cos mul alpha sin div b neg } + { + % else 360 - theta <= alpha, return (a, a*tan(alpha)) + a a alpha sin mul alpha cos div + } ifelse + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigboxcircum) lfigdebugprint +} def + +% find quadratic roots (assume a != 0): a b c lfigqroots x1 x2 2 +% or x2 1 +% or 0 +/lfigqroots +{ + 4 dict begin + /c exch def + /b exch def + /a exch def + /disc b b mul 4 a c mul mul sub def + disc 0 lt + { 0 + } + { disc 0 eq + { b neg 2 a mul div + 1 + } + { b neg disc sqrt add 2 a mul div + b neg disc sqrt sub 2 a mul div + 2 + } + ifelse + } + ifelse + end +} def + +% work our which quadrant: lfigquadrant <0-3> +/lfigquadrant +{ dup 90 lt + { pop 0 + } + { dup 180 lt + { pop 1 + } + { 270 lt + { 2 + } + { 3 + } ifelse + } ifelse + } ifelse +} def + +% find curvebox circum, assuming upper right quadrant: alpha a b xmk lfigcb x y +/lfigcb +{ + 6 dict begin + /xmk exch def + /b exch def + /a exch def + /alpha exch def + /theta1 0 0 a b xmk sub lfigangle def + /theta2 0 0 a xmk sub b lfigangle def + alpha theta1 le + { % if alpha <= theta1, return (a, a*tan(alpha)) + a a alpha sin mul alpha cos div + } + { alpha theta2 ge + { % else if alpha > theta2, return (b*cot(alpha), b) + b alpha cos mul alpha sin div b + } + { + % else, return the intersection of line and circle + a xmk sub b xmk sub xmk 0 0 alpha lfigcircleintersect + dup 0 eq + { % should never happen, just return any reasonable point + pop + a b 0.5 lfigpmul + } + { 1 eq + { % should never happen, just return the point on top of stack + } + { % the usual case, two points on stack, return the larger + lfigpmax + } ifelse + } ifelse + } ifelse + } ifelse + end +} def + +% find point on circumference of curvebox: alpha a b xmk lfigcurveboxcircum x y +/lfigcurveboxcircum +{ + % (Entering lfigcurveboxcircum) lfigdebugprint + 5 dict begin + /xmk exch def + /b exch def + /a exch def + lfigfixangle /alpha exch def + + % work out which quadrant we are in, and reflect accordingly + /quad alpha lfigquadrant def + quad 0 eq + { alpha a b xmk lfigcb + } + { quad 1 eq + { 180 alpha sub a b xmk lfigcb exch neg exch + } + { quad 2 eq + { alpha 180 sub a b xmk lfigcb neg exch neg exch + } + { 360 alpha sub a b xmk lfigcb neg + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigcurveboxcircum) lfigdebugprint +} def + +% find point on circumference of diamond: alpha a b lfigdiamondcircum x y +/lfigdiamondcircum +{ + % (Entering lfigdiamondcircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + b alpha cos abs mul a alpha sin abs mul add /denom exch def + a b mul alpha cos mul denom div + a b mul alpha sin mul denom div + end + % (Leaving lfigdiamondcircum) lfigdebugprint +} def + +% find point on circumference of ellipse: alpha a b lfigellipsecircum x y +/lfigellipsecircum +{ + % (Entering lfigellipsecircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + b alpha cos mul dup mul a alpha sin mul dup mul add sqrt /denom exch def + a b mul alpha cos mul denom div + a b mul alpha sin mul denom div + end + % (Leaving lfigellipsecircum) lfigdebugprint +} def + +% find point of intersection of two lines each defined by two points +% x1 y1 x2 y2 x3 y3 x4 y4 lfiglineintersect x y +/lfiglineintersect +{ + % (Entering lfiglineintersect) lfigdebugprint + 13 dict begin + /y4 exch def + /x4 exch def + /y3 exch def + /x3 exch def + /y2 exch def + /x2 exch def + /y1 exch def + /x1 exch def + x2 x1 sub /x21 exch def + x4 x3 sub /x43 exch def + y2 y1 sub /y21 exch def + y4 y3 sub /y43 exch def + y21 x43 mul y43 x21 mul sub /det exch def + + % calculate x + y21 x43 mul x1 mul + y43 x21 mul x3 mul sub + y3 y1 sub x21 mul x43 mul add + det div + + % calculate y + x21 y43 mul y1 mul + x43 y21 mul y3 mul sub + x3 x1 sub y21 mul y43 mul add + det neg div + + end + % (Leaving lfiglineintersect) lfigdebugprint +} def + +% find point on circumference of polygon +% alpha radius num theta lfigpolycircum x y +/lfigpolycircum +{ + % (Entering lfigpolycircum) lfigdebugprint + 13 dict begin + /theta exch def + /num exch def + /radius exch def + /alpha exch def + + % calculate delta, the angle from theta to alpha + alpha theta sub lfigfixangle + + % calculate the angle which is the multiple of 360/num closest to delta + 360 num div div truncate 360 num div mul theta add /anglea exch def + + % calculate the next multiple of 360/num after anglea + anglea 360 num div add /angleb exch def + + % intersect the line through these two points with the alpha line + anglea cos anglea sin angleb cos angleb sin + 0 0 alpha cos 2 mul alpha sin 2 mul + lfiglineintersect radius lfigpmul + + end + % (Leaving lfigpolycircum) lfigdebugprint +} def + +% find point of intersection of a point and a circle +% x0 y0 r x1 y1 theta lfigcircleintersect xa ya xb yb 2 +% or xb yb 1 +% or 0 +/lfigcircleintersect +{ + % (Entering lfigcircleintersect) lfigdebugprint + 15 dict begin + /theta exch def + /y1 exch def + /x1 exch def + /r exch def + /y0 exch def + /x0 exch def + + % if sin(theta) = 0 then line is horizontal and y must be y1 + theta sin abs 0.00001 lt + { + /a 1 def + /b -2 x0 mul def + /c x0 dup mul y1 y0 sub dup mul add r dup mul sub def + a b c lfigqroots dup + 0 eq + { pop + 0 + } + { 1 eq + { y1 1 + } + { y1 exch y1 2 + } ifelse + } ifelse + } + { + /ct theta cos theta sin div def + /a ct ct mul 1 add def + /b ct x1 x0 sub mul y1 add y0 sub 2 mul def + /c x1 x0 sub dup mul y1 y0 sub dup mul add r dup mul sub def + a b c lfigqroots dup + 0 eq + { pop + 0 + } + { 1 eq + { y1 add /yb exch def + yb y1 sub ct mul x1 add /xb exch def + xb yb 1 + } + { y1 add /ya exch def + ya y1 sub ct mul x1 add /xa exch def + y1 add /yb exch def + yb y1 sub ct mul x1 add /xb exch def + xa ya xb yb 2 + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigcircleintersect) lfigdebugprint +} def + +% add CIRCUM operator with this body: lfigcircumdef - +/lfigcircumdef +{ % (Entering lfigcircumdef) lfigdebugprint + /CIRCUM exch cvx + currentdict end + 3 1 roll + % currentdict length currentdict maxlength lt + % { def } + % { exec moveto (too many labels) show stop } + % ifelse + def + begin + % (Leaving lfigcircumdef) lfigdebugprint +} def + +end +%%EndResource + +%%BeginResource: procset LoutBasicSetup +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/bsf.lpg + +% width height linethickness louteuro - +% draw a Euro symbol of this width and height with this line thickness +/louteuro { + 20 dict begin + /eurothick exch def + /euroheight exch def + /eurowidth exch def + /eurostrokewidth euroheight 0.8 mul def + /eurostep eurothick 60 cos mul 60 sin div def + /eurotheta 40 def + + % llx lly width thickness louteurobox - + % draw angled box starting at (llx, lly) with given width and thickness + /louteurobox + { + /euroboxthick exch def + /euroboxwidth exch def + newpath moveto euroboxwidth 0 rlineto + eurostep euroboxthick rlineto + euroboxwidth neg 0 rlineto closepath fill + } def + + % lower cross stroke + 0 euroheight 2 div eurothick 1.5 mul sub + eurostrokewidth eurothick louteurobox + + % upper cross stroke + 0 euroheight 2 div eurothick 0.5 mul add + eurostrokewidth eurostep 2 mul add eurothick louteurobox + + % circular part + /eurohctr eurowidth euroheight 2 div eurotheta cos mul sub def + /eurovctr euroheight 2 div def + newpath + eurohctr eurovctr eurovctr eurotheta 350 eurotheta sub arc + eurohctr eurovctr eurovctr eurothick sub 365 eurotheta sub eurotheta arcn + closepath fill + end +} def + +% path for @FullWidthRule symbol +/LoutRule +{ 0 0 moveto xsize 0 lineto +} def + +% path for @Box symbol +/LoutBox +{ 0 0 moveto xsize 0 lineto + xsize ysize lineto 0 ysize lineto + closepath +} def + +% path for @CurveBox symbol +/LoutCurveBox +{ xmark 0 moveto + xsize xmark sub xmark xmark 270 360 arc + xsize xmark sub ysize xmark sub xmark 0 90 arc + xmark ysize xmark sub xmark 90 180 arc + xmark xmark xmark 180 270 arc + closepath +} def + +% path for @ShadowBox symbol +/LoutShadowBox +{ xmark 2 mul 0 moveto xsize 0 lineto + xsize ysize xmark 2 mul sub lineto + xsize xmark sub ysize xmark 2 mul sub lineto + xsize xmark sub xmark lineto + xmark 2 mul xmark lineto + closepath +} def + +% set up dictionary containing margin note data: parity LoutMargSet - +/LoutMargSet +{ /LoutMargDict 12 dict def + LoutMargDict begin + /parity exch def + /matr matrix currentmatrix def + /rightx xsize def + /lefty ysize def % highest allowable point for top of next left note + /righty ysize def % highest allowable point for top of next right note + /max { 2 copy gt { pop } { exch pop } ifelse } def + /min { 2 copy lt { pop } { exch pop } ifelse } def + end +} def + +%translate coordinate system for marginal notes: type LoutMargShift - +% where type 0 is left margin, 1 is right margin, 2 is outer, 3 is inner +/LoutMargShift +{ LoutMargDict begin + + % y coordinate of top of note, in margin coords, before vertical adjust + 0 ysize transform matr itransform exch pop + + % decide whether left or right margin based on type and parity + exch [ 0 1 parity 1 parity sub ] exch get 0 eq + { + % left margin: adjust top of note downwards if overlaps previous note + lefty min + + % bottom of note is new lefty position and also translate position + ysize sub dup /lefty exch def + + % want right edge of note at coordinate zero + xsize neg exch + } + { + % right margin: adjust top of note downwards if overlaps previous note + righty min + + % bottom of note is new righty position and also translate position + ysize sub dup /righty exch def + + % want left edge of note at coordinate rightx + rightx exch + } ifelse + + % stack now contains coord of bottom left corner in margin coordinates + matr setmatrix translate + end +} def + +% create LoutPageDict with left, right, foot, top for @Place symbol users 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3152 0 LoutGr2 +currentdict end 70 dict begin begin +grestore +1717 338 56 282 240 288 12 1379 1524 LoutGr2 +currentdict end 70 dict begin begin +grestore +338 338 56 282 240 288 12 0 0 LoutGr2 + +0.5 pt setlinewidth lfiground setlinecap +0.15 cm /lfigsolid [ lfigcircle ] lfigdopath +pop pop +grestore +192 fnt78 +156 121(|)m +grestore +(T) lfigpromotelabels +grestore +1520 1354 0 1298 240 288 12 0 0 LoutGr2 +currentdict end 70 dict begin begin +grestore +1067 338 56 282 240 288 12 453 1016 LoutGr2 +currentdict end 70 dict begin begin +grestore +614 338 56 282 240 288 12 0 0 LoutGr2 + +0.5 pt setlinewidth lfiground setlinecap +0.15 cm /lfigsolid [ lfigellipse ] lfigdopath +pop pop +grestore +192 fnt83 56 107(SPLIT)m +grestore +(T) lfigpromotelabels +grestore +732 846 0 790 240 288 12 0 0 LoutGr2 +currentdict end 70 dict begin begin +grestore +608 338 56 282 240 288 12 124 508 LoutGr2 +currentdict end 70 dict begin begin +grestore +484 338 56 282 240 288 12 0 0 LoutGr2 + +0.5 pt 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LoutGr2 +currentdict end 70 dict begin begin +grestore +628 338 56 282 240 288 12 104 508 LoutGr2 +currentdict end 70 dict begin begin +grestore +524 338 56 282 240 288 12 0 0 LoutGr2 + +0.5 pt setlinewidth lfiground setlinecap +0.15 cm /lfigsolid [ lfigellipse ] lfigdopath +pop pop +grestore +192 fnt83 +56 107(R)m 7(O)k 9(W)k +grestore +(T) lfigpromotelabels +grestore +338 338 56 282 240 288 12 0 0 LoutGr2 +currentdict end 70 dict begin begin +grestore +338 338 56 282 240 288 12 0 0 LoutGr2 +currentdict end 70 dict begin begin +grestore +338 338 56 282 240 288 12 0 0 LoutGr2 + +0.5 pt setlinewidth lfiground setlinecap +0.15 cm /lfigsolid [ lfigcircle ] lfigdopath +pop pop +grestore +192 fnt83 128 128(c)m + +grestore +(T) lfigpromotelabels +grestore +(S) lfigpromotelabels +grestore +0 0 0 0 240 288 12 338 282 LoutGr2 + +0.5 pt setlinewidth lfiground setlinecap +0.15 cm /lfigsolid [ S@T@CTR S@T@CTR T@CTR lfigangle S@T@CIRCUM lfigpadd lfigprevious /FROM lfigpointdef +T@CTR T@CTR S@T@CTR 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pop +grestore + +grestore +end end restore +grestore +0 10598(In)m 244(f)s 2(act,)k +693(common)s 1576(sube)s 3(xpressions)k 3060(are)s 3395(identi\207ed)s +4343(\(tri)s 6(vially\))k 5286(and)s 5678(the)s 6013(result)s +6591(is)s 6788(a)s 6942(directed)s 7756(ac)s 3(yclic)k +8469(graph;)s 0 10310(each)m 486(af)s 6(fected)k 1296(leaf)s +1716(has)s 2076(tw)s 2(o)k 2477(parents,)s 3264(one)s +3657(for)s 3985(width)s 4578(and)s 4972(one)s 5365(for)s +5693(height;)s 6394(and)s 6788(each)s 240 fnt83 7274 10312(COL)m +240 fnt82 7790 10310(or)m 240 fnt83 8040 10312(R)m 9(O)k 12(W)k +240 fnt82 8604 10310(node)m 0 10022(has)m 360(one)s 752(parent)s +1398(and)s 1792(one)s 2184(child)s 2709(for)s 3037(each)s +3521(object)s 4155(lying)s 4690(on)s 4976(the)s 5314(corresponding)s +6726(mark.)s 7370(The)s 7788(data)s 8235(structure)s 0 9734(roughly)m +799(doubles)s 1595(in)s 1838(size,)s 2316(and)s 2720(this)s +3116(occurs)s 3791(only)s 4271(rarely)s 4881(in)s 5124(practice.)s +480 9360(This)m 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3(y)k +6485(v)s 6(aluable)k 7424(discussions)s 8644(with)s 0 396(Douglas)m +862(W)s 22(.)k 1183(Jones,)s 1835(especially)s 2857(during)s +3548(the)s 3909(de)s 6(v)k 3(elopment)k 5209(of)s +5493(the)s 5854(g)s 1(alle)k 3(y)k 6501(abstraction;)s +7674(and)s 8091(also)s 8543(man)s 3(y)k 0 108(helpful)m +732(comments)s 1766(on)s 2063(presentation)s 3288(by)s 3582(the)s +3930(anon)s 3(ymous)k 5083(referee.)s +grestore + +grestore + +grestore + +pgsave restore +showpage + +%%Page: 39 40 +%%BeginPageSetup +%%PageResources: font Times-Roman +%%+ font Times-Bold +%%+ font Times-Italic +/pgsave save def +0.0500 dup scale 10 setlinewidth +%%EndPageSetup +gsave +0 0 translate +240 fnt82 0.0 0.0 0.0 setrgbcolor 11900 16840 0 16840 240 288 60 LoutGraphic +gsave +LoutPageSet +grestore +gsave +0 16840 translate +0.0000 rotate +9066 14006 0 14006 240 288 60 1417 -15423 LoutGr2 +1 LoutMargSet +grestore +4289 13844(-)m 4417(39)s 4708(-)s 240 fnt84 0 12961(Refer)m 4(ences)k +240 fnt82 0 12507(1.)m 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10637(V)m 26(ersion)k 1287(2)s +1480(publicly)s 2337(a)s 4(v)k 6(ailable)k 3264(in)s +3526(the)s 240 fnt83 3893 10639(pub)m 240 fnt82 4326 10637(subdirectory)m +5595(of)s 5885(the)s 6252(home)s 6859(directory)s 7794(of)s +240 fnt83 8084 10639(ftp)m 240 fnt82 8408 10637(to)m 8667(host)s +240 fnt83 480 10351(ftp.cs.su.oz.au)m 240 fnt82 1924 10349(with)m 2439(login)s +3021(name)s 240 fnt83 3628 10351(anonymous)m 240 fnt82 4808 10349(and)m +5246(no)s 5572(passw)s 2(ord.)k 6671(Distrib)s 4(ution)k +7912(via)s 8297(email)s 8916(is)s 480 10061(a)m 4(v)k 6(ailable)k +1388(for)s 1726(non-)s 240 fnt83 2154 10063(ftp)m 240 fnt82 +2459 10061(sites.)m 3047(All)s 3407(enquiries)s 4334(to)s 4573(jef)s 6(f@cs.su.oz.au.)k +0 9558(4.)m 480(Furuta,)s 1211(Richard,)s 2075(Sco\207eld,)s 2965(Jef)s 6(fre)k 3(y)k 15(,)k +3710(and)s 4113(Sha)s 3(w)k 15(,)k 4734(Alan.)s +5363(Document)s 6419(formatting)s 7480(systems:)s 8402(surv)s 3(e)k 3(y)k 15(,)k +480 9270(concepts,)m 1424(and)s 1828(issues)s 2390(.)s 240 fnt83 +2554 9272(Computing)m 3673(Surve)s 7(ys)k 240 fnt84 4465 9269(14)m +240 fnt82 4699 9270(,)m 4806(417\211472)s 5700(\(1982\))s 6327(.)s +0 8765(5.)m 480(K)s 6(ernighan,)k 1645(Brian)s 2287(W)s 22(.)k +2649(and)s 3107(Cherry)s 15(,)k 3917(Lorinda)s 4789(L..)s +5213(A)s 5497(system)s 6275(for)s 6667(typesetting)s 7824(mathematics)s +9022(.)s 240 fnt83 480 8479(Communications)m 2158(of)s 2439(the)s +2784(A)s 7(CM)k 240 fnt84 3351 8476(18)m 240 fnt82 +3585 8477(,)m 3692(182\211193)s 4576(\(1975\))s 5203(.)s 0 7977(6.)m +480(Kingston,)s 1488(Jef)s 6(fre)k 3(y)k 2218(H..)s +2638(Fig)s 3033(\211)s 3236(a)s 3425(Lout)s 3961(package)s +4824(for)s 5185(dra)s 3(wing)k 6042(\207gures)s 6684(.)s +6871(T)s 16(ech.)k 7460(Rep.)s 7973(411)s 8392(\(1991\))s +9019(,)s 480 7689(Basser)m 1177(Department)s 2365(of)s 2636(Computer)s +3653(Science,)s 4503(The)s 4931(Uni)s 6(v)k 3(ersity)k +5985(of)s 6256(Sydne)s 3(y)k 15(,)k 7064(Australia)s +7939(.)s 0 7184(7.)m 480(Reid,)s 1042(Brian)s 1633(K..)s +2033(A)s 2266(High-)s 2813(Le)s 6(v)k 3(el)k +3406(Approach)s 4410(to)s 4652(Computer)s 5672(Document)s 6732(Production)s +7779(.)s 7946(In)s 240 fnt83 8205 7186(Pr)m 10(oceed)k +240 fnt82 8998 7184(-)m 240 fnt83 480 6898(ings)m 935(of)s +1217(the)s 1564(7th)s 1926(Symposium)s 3074(on)s 3370(the)s +3716(Principles)s 4755(of)s 5037(Pr)s 10(o)k 2(gr)k 3(amming)k +6421(Langua)s 2(g)k 2(es)k 7526(\(POPL\),)s 8376(Las)s +8779(V)s 26(e)k 240 fnt82 8998 6896(-)m 240 fnt83 +480 6610(gas)m 868(NV)s 240 fnt82 1192 6608(,)m 1299(pages)s +1895(24\21131)s 2470(,)s 2577(1980)s 3052(.)s 0 6103(8.)m +480(Joseph)s 1207(F)s 19(.)k 1443(Ossanna.)s 2436(Nrof)s 6(f/T)k 8(rof)k 6(f)k +3605(User')s 13(s)k 4284(Manual)s 5010(.)s 5193(T)s 16(ech.)k +5777(Rep.)s 6285(54)s 6597(\(1976\))s 7224(,)s 7349(Bell)s +7821(Laboratories)s 9019(,)s 480 5815(Murray)m 1251(Hill,)s 1729(NJ)s +2051(07974)s 2645(.)s 0 5310(9.)m 480(Knuth,)s 1186(Donald)s +1949(E..)s 240 fnt83 2319 5312(The)m 2731(T)s 2882 5264(E)m +3033 5312(XBook)m 240 fnt82 3675 5310(.)m 3839(Addison-W)s 19(esle)k 3(y)k +5419(,)s 5526(1984)s 6000(.)s 0 4807(10.)m 480(Kingston,)s +1485(Jef)s 6(fre)k 3(y)k 2212(H..)s 2629(Eq)s +2973(\211)s 3173(a)s 3359(Lout)s 3892(package)s 4752(for)s +5110(typesetting)s 6232(mathematics)s 7430(.)s 7614(T)s 16(ech.)k +8200(Rep.)s 8711(410)s 480 4519(\(1991\))m 1107(,)s 1248(Basser)s +1980(Department)s 3203(of)s 3509(Computer)s 4561(Science,)s 5446(The)s +5909(Uni)s 6(v)k 3(ersity)k 6998(of)s 7304(Sydne)s 3(y)k 15(,)k +8147(Australia)s 9022(.)s 480 4231(\(Contains)m 1461(an)s 1744(appendix)s +2677(describing)s 3726(the)s 4074(P)s 3(as)k 4454(P)s 3(ascal)k +5116(formatter)s 13(.\))k 0 3728(11.)m 480(Kingston,)s 1478(Jef)s 6(fre)k 3(y)k +2198(H..)s 2608(A)s 2851(be)s 3(ginners')k 3903(guide)s +4504(to)s 4756(Lout)s 5208(.)s 5385(T)s 16(ech.)k +5964(Rep.)s 6467(409)s 6891(\(1991\))s 7518(,)s 7638(Basser)s +8348(Depart)s 8998(-)s 480 3440(ment)m 1018(of)s 1289(Computer)s +2306(Science,)s 3156(The)s 3584(Uni)s 6(v)k 3(ersity)k +4638(of)s 4909(Sydne)s 3(y)k 15(,)k 5717(Australia)s +6592(.)s 0 2937(12.)m 480(Kingston,)s 1475(Jef)s 6(fre)k 3(y)k +2193(H..)s 2600(T)s 19(ab)k 3017(\211)s 3207(a)s +3384(Lout)s 3907(package)s 4757(for)s 5106(formatting)s 6177(tables)s +6725(.)s 6900(T)s 16(ech.)k 7476(Rep.)s 7977(413)s +8392(\(1991\))s 9019(,)s 480 2649(Basser)m 1177(Department)s 2365(of)s +2636(Computer)s 3653(Science,)s 4503(The)s 4931(Uni)s 6(v)k 3(ersity)k +5985(of)s 6256(Sydne)s 3(y)k 15(,)k 7064(Australia)s +7939(.)s 0 2146(13.)m 480(Brooks,)s 1279(K)s 6(enneth)k +2141(P)s 26(..)k 2472(Lilac:)s 3068(a)s 3234(tw)s 2(o-vie)k 6(w)k +4183(document)s 5187(editor)s 5744(.)s 240 fnt83 5908 2148(IEEE)m +6490(Computer)s 240 fnt82 7453 2146(,)m 7560(7\21119)s 8091(\(1991\))s +8718(.)s +grestore + +grestore + +grestore + +pgsave restore +showpage + +%%Trailer +%%DocumentNeededResources: font Helvetica +%%+ font Symbol +%%+ font Times-Roman +%%+ font Times-Italic +%%+ font Times-Bold +%%DocumentSuppliedResources: procset LoutStartUp +%%+ procset LoutTabPrependGraphic +%%+ procset LoutFigPrependGraphic +%%+ procset LoutBasicSetup +%%+ encoding vec2 +%%Pages: 40 +%%EOF diff --git a/doc/expert/README b/doc/expert/README index a69bf2b..8bf70b6 100644 --- a/doc/expert/README +++ b/doc/expert/README @@ -16,4 +16,4 @@ copy of the final outfile.ps is included. There should be no warning messages on the fifth run. Jeffrey H. Kingston -9 March 2000 +8 April 2000 diff --git a/doc/expert/all b/doc/expert/all index e2a5a78..84b3ae7 100644 --- a/doc/expert/all +++ b/doc/expert/all @@ -10,8 +10,8 @@ Lout Document Formatting System } @Author { Jeffrey H. Kingston } - @Edition { Version 3.18 -February, 2000 } + @Edition { Version 3.20 +April, 2000 } @Publisher { @I { @CopyRight Copyright 1991, 2000, Jeffrey H. Kingston, Basser Department of Computer Science, The University of Sydney 2006, Australia.} } diff --git a/doc/expert/exa_bibl b/doc/expert/exa_bibl index f1e1930..9de5f26 100644 --- a/doc/expert/exa_bibl +++ b/doc/expert/exa_bibl @@ -65,7 +65,7 @@ The right parameter of @@Open may use the exported parameters of the left, and so the result is @ID { @Reference&&strunk1979style @Open -{ @Author, {Slope @Font @Title}. @Publisher, @Year. } &0io +{ @Author, {Slope @Font @Title}. @Publisher, @Year. } |0io } Incidentally, we are not limited to just one database of references; several @@Database symbols can nominate the same symbol, and invocations of @@ -105,7 +105,7 @@ and so on. The following prints the reference whose tag is } It has result @ID { -@RefStyle&&Book @Open { @Style strunk1979style } &0io +@RefStyle&&Book @Open { @Style strunk1979style } |0io } Notice how the @Code "@Style" parameter of @Code "@RefStyle" is given the parameter {@Code strunk1979style}, which it uses to open the appropriate diff --git a/doc/expert/outfile.ps b/doc/expert/outfile.ps new file mode 100644 index 0000000..2f14b30 --- /dev/null +++ b/doc/expert/outfile.ps @@ -0,0 +1,16122 @@ +%!PS-Adobe-3.0 +%%Creator: Basser Lout Version 3.20 (April 2000) +%%CreationDate: Sat Apr 8 14:58:34 2000 +%%DocumentData: Binary +%%DocumentNeededResources: (atend) +%%DocumentSuppliedResources: (atend) +%%DocumentMedia: A4 595 842 0 white () +%%PageOrder: Ascend +%%Pages: (atend) +%%BoundingBox: 0 0 595 842 +%%EndComments + +%%BeginProlog +%%BeginResource: procset LoutStartUp +/m { 3 1 roll moveto show } bind def +/mo { 3 1 roll moveto true charpath stroke } bind def +/s { exch currentpoint exch pop moveto show } bind def +/so { exch currentpoint exch pop moveto true charpath stroke } bind def +/k { exch neg 0 rmoveto show } bind def +/ko { exch neg 0 rmoveto true charpath stroke } bind def +/ul { gsave setlinewidth dup 3 1 roll + moveto lineto stroke grestore } bind def +/in { 1440 mul } def +/cm { 567 mul } def +/pt { 20 mul } def +/em { 120 mul } def +/sp { louts mul } def +/vs { loutv mul } def +/ft { loutf mul } def +/dg { } def + +/LoutGraphic { + /louts exch def + /loutv exch def + /loutf exch def + /ymark exch def + /xmark exch def + /ysize exch def + /xsize exch def +} def + +/LoutGr2 { gsave translate LoutGraphic gsave } def + +/LoutFont +{ findfont exch scalefont setfont +} bind def + +/LoutRecode { + { findfont dup length dict begin + {1 index /FID ne {def} {pop pop} ifelse} forall + /Encoding exch def + currentdict end definefont pop + } + stopped pop +} bind def + +/BeginEPSF { + /LoutEPSFState save def + /dict_count countdictstack def + /op_count count 1 sub def + userdict begin + /showpage { } def + 0 setgray 0 setlinecap + 1 setlinewidth 0 setlinejoin + 10 setmiterlimit [] 0 setdash newpath + /languagelevel where + { pop languagelevel + 1 ne + { false setstrokeadjust false setoverprint + } if + } if +} bind def + +/EndEPSF { + count op_count sub { pop } repeat + countdictstack dict_count sub { end } repeat + LoutEPSFState restore +} bind def +%%EndResource + +%%BeginResource: encoding vec2 +/vec2 [ +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/space /exclam /quotedbl /numbersign /dollar /percent /ampersand /quoteright +/parenleft /parenright /asterisk /plus /comma /hyphen /period /slash +/zero /one /two /three /four /five /six /seven +/eight /nine /colon /semicolon /less /equal /greater /question +/at /A /B /C /D /E /F /G +/H /I /J /K /L /M /N /O +/P /Q /R /S /T /U /V /W +/X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore +/quoteleft /a /b /c /d /e /f /g +/h /i /j /k /l /m /n /o +/p /q /r /s /t /u /v /w +/x /y /z /braceleft /bar /braceright /asciitilde /.notdef +/quotesinglbase /quotedblbase /ellipsis /OE /oe /quotedblleft /quotedblright /fi +/fl /endash /emdash /bullet /dagger /daggerdbl /florin /fraction +/dotlessi /grave /acute /circumflex /tilde /macron /breve /dotaccent +/dieresis /.notdef /ring /cedilla /.notdef /hungarumlaut /ogonek /caron +/space /exclamdown /cent /sterling /currency /yen /brokenbar /section +/dieresis /copyright /ordfeminine /guillemotleft /logicalnot /hyphen /registered /macron +/degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph /periodcentered +/cedilla /onesuperior /ordmasculine /guillemotright /onequarter /onehalf /threequarters /questiondown +/Agrave /Aacute /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla +/Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex /Idieresis +/Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply +/Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn /germandbls +/agrave /aacute /acircumflex /atilde /adieresis /aring /ae /ccedilla +/egrave /eacute /ecircumflex /edieresis /igrave /iacute /icircumflex /idieresis +/eth /ntilde /ograve /oacute /ocircumflex /otilde /odieresis /divide +/oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn /ydieresis +] def +%%EndResource + +%%BeginResource: procset LoutTabPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/tabf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Tab % +% % +% To assist in avoiding name clashes, the names % +% of all these symbols begin with "ltab". % +% % +% Jeffrey H. Kingston % +% 24 September 1991 % +% 22 December 1992 % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +% linewidth ltabhs - +% horizontal single line +/ltabhs +{ 0 0 moveto xsize 0 lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhsp - +% horizontal single line with projecting ends +/ltabhsp +{ 0 0 moveto xsize 0 lineto + setlinewidth 2 setlinecap stroke +} def + +% linewidth ltabhd - +% horizontal double line +/ltabhd +{ dup dup + 0 0 moveto xsize 0 lineto + 0 exch 3 mul moveto xsize exch 3 mul lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhdb - +% horizontal double line below mark +/ltabhdb +{ dup dup + 0 0 moveto xsize 0 lineto + 0 exch -3 mul moveto xsize exch -3 mul lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhdnw - +% horizontal double line with northwest corner +/ltabhdnw +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + xsize exch 3 mul moveto + -3 mul exch 3 mul lineto + -3 mul 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdne - +% horizontal double line with northeast corner +/ltabhdne +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + 0 exch 3 mul moveto + 3 mul xsize add exch 3 mul lineto + 3 mul xsize add 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdsw - +% horizontal double line with southwest corner +/ltabhdsw +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + xsize exch -3 mul moveto + -3 mul exch -3 mul lineto + -3 mul 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdse - +% horizontal double line with southeast corner +/ltabhdse +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + 0 exch -3 mul moveto + 3 mul xsize add exch -3 mul lineto + 3 mul xsize add 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabvs - +% vertical single line +/ltabvs +{ 0 0 moveto 0 ysize lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabvd - +% vertical double line +/ltabvd +{ dup dup + 0 0 moveto 0 ysize lineto + -3 mul 0 moveto -3 mul ysize lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabvdr - +% vertical double line to right of mark +/ltabvdr +{ dup dup + 0 0 moveto 0 ysize lineto + 3 mul 0 moveto 3 mul ysize lineto + setlinewidth 0 setlinecap stroke +} def +%%EndResource + +%%BeginResource: procset LoutFigPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/figf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Fig Jeffrey H. Kingston % +% Version 2.0 (includes CIRCUM label) January 1992 % +% % +% To assist in avoiding name clashes, the names of all symbols % +% defined here begin with "lfig". However, this is not feasible % +% with user-defined labels and some labels used by users. % +% % +% is two numbers, a point. % +% is one number, a length % +% is one number, an angle in degrees % +% is one number, the preferred length of a dash % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +errordict begin + /handleerror + { + { /Times-Roman findfont 8 pt scalefont setfont + 0 setgray 4 pt 4 pt moveto + $error /errorname get + dup lfigdict exch known + { lfigdict exch get } + { 30 string cvs } ifelse + show + ( Command: ) show + $error /command get 30 string cvs show + } stopped {} if + showpage stop + } def +end + +% concat strings: lfigconcat +% must be defined outside lfigdict since used in lfigpromotelabels +/lfigconcat +{ 2 copy length exch length add string + dup 0 4 index putinterval + dup 3 index length 3 index putinterval + 3 1 roll pop pop +} def + +% lfigdebugprint - +% must be defined outside lfigdict since used in arbitrary places +% /lfigdebugprint +% { print +% (; operand stack:\n) print +% count copy +% count 2 idiv +% { == +% (\n) print +% } repeat +% (\n) print +% } def + +/lfigdict 120 dict def +lfigdict begin + +% error messages +/dictfull (dictfull error: too many labels?) def +/dictstackoverflow (dictstackoverflow error: labels nested too deeply?) def +/execstackoverflow (execstackoverflow error: figure nested too deeply?) def +/limitcheck (limitcheck error: figure nested too deeply or too large?) def +/syntaxerror (syntaxerror error: syntax error in text of figure?) def +/typecheck (typecheck error: syntax error in text of figure?) def +/undefined (undefined error: unknown or misspelt label?) def +/VMError (VMError error: run out of memory?) def + +% push pi onto stack: - lfigpi +/lfigpi 3.14159 def + +% arc directions +/clockwise false def +/anticlockwise true def + +% maximum of two numbers: lfigmax +/lfigmax { 2 copy gt { pop } { exch pop } ifelse } def + +% minimum of two numbers: lfigmin +/lfigmin { 2 copy lt { pop } { exch pop } ifelse } def + +% add two points: lfigpadd +/lfigpadd { exch 3 1 roll add 3 1 roll add exch } def + +% subtract first point from second: lfigpsub +/lfigpsub { 3 2 roll sub 3 1 roll exch sub exch } def + +% max two points: lfigpmax +/lfigpmax { exch 3 1 roll lfigmax 3 1 roll lfigmax exch } def + +% min two points: lfigpmin +/lfigpmin { exch 3 1 roll lfigmin 3 1 roll lfigmin exch } def + +% scalar multiplication: lfigpmul +/lfigpmul { dup 3 1 roll mul 3 1 roll mul exch } def + +% point at angle and distance: lfigatangle +/lfigatangle { 2 copy cos mul 3 1 roll sin mul lfigpadd } def + +% angle from one point to another: lfigangle +/lfigangle { lfigpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def + +% distance between two points: lfigdistance +/lfigdistance { lfigpsub dup mul exch dup mul add sqrt } def + +% difference in x coords: lfigxdistance +/lfigxdistance { pop 3 1 roll pop sub } def + +%difference in y coords: lfigydistance +/lfigydistance { 3 1 roll pop sub exch pop } def + +% stroke a solid line: lfigsolid - +/lfigsolid +{ pop pop [] 0 setdash stroke +} def + +% stroke a lfigdashed line: lfigdashed - +/lfigdashed +{ 2 copy div 2 le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch dup ] 0 setdash } + { dup [ exch 4 2 roll 2 copy div + 1 sub 2 div ceiling dup 4 1 roll + 1 add mul sub exch div ] 0 setdash + } ifelse stroke +} def + +% stroke a lfigcdashed line: lfigcdashed - +/lfigcdashed +{ 2 copy le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch dup ] dup 0 get 2 div setdash } + { dup [ 4 2 roll exch 2 copy exch div + 2 div ceiling div 1 index sub + ] exch 2 div setdash + } ifelse stroke +} def + +% stroke a dotted line: lfigdotted - +/lfigdotted +{ 2 copy le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch 0 exch ] 0 setdash } + { 1 index exch div ceiling div + [ 0 3 2 roll ] 0 setdash + } ifelse stroke +} def + +% stroke a noline line: lfignoline - +/lfignoline +{ pop pop +} def + +% painting (i.e. filling): - lfigwhite - (etc.) +/lfignopaint { } def +/lfignochange { fill } def +/lfigdarkblue { 0.0 0.0 0.5 setrgbcolor fill } def +/lfigblue { 0.0 0.0 1.0 setrgbcolor fill } def +/lfiglightblue { 0.5 0.5 1.0 setrgbcolor fill } def +/lfigdarkgreen { 0.0 0.5 0.0 setrgbcolor fill } def +/lfiggreen { 0.0 1.0 0.0 setrgbcolor fill } def +/lfiglightgreen { 0.5 1.0 0.5 setrgbcolor fill } def +/lfigdarkred { 0.5 0.0 0.0 setrgbcolor fill } def +/lfigred { 1.0 0.0 0.0 setrgbcolor fill } def +/lfiglightred { 1.0 0.5 0.5 setrgbcolor fill } def +/lfigdarkcyan { 0.0 0.5 0.5 setrgbcolor fill } def +/lfigcyan { 0.0 1.0 1.0 setrgbcolor fill } def +/lfiglightcyan { 0.5 1.0 1.0 setrgbcolor fill } def +/lfigdarkmagenta { 0.5 0.0 0.5 setrgbcolor fill } def +/lfigmagenta { 1.0 0.0 1.0 setrgbcolor fill } def +/lfiglightmagenta { 1.0 0.5 1.0 setrgbcolor fill } def +/lfigdarkyellow { 0.5 0.5 0.0 setrgbcolor fill } def +/lfigyellow { 1.0 1.0 0.0 setrgbcolor fill } def +/lfiglightyellow { 1.0 1.0 0.5 setrgbcolor fill } def +/lfigdarkgray { 0.2 0.2 0.2 setrgbcolor fill } def +/lfiggray { 0.5 0.5 0.5 setrgbcolor fill } def +/lfiglightgray { 0.8 0.8 0.8 setrgbcolor fill } def +/lfigdarkgrey { 0.2 0.2 0.2 setrgbcolor fill } def +/lfiggrey { 0.5 0.5 0.5 setrgbcolor fill } def +/lfiglightgrey { 0.8 0.8 0.8 setrgbcolor fill } def +/lfigblack { 0.0 0.0 0.0 setrgbcolor fill } def +/lfigwhite { 1.0 1.0 1.0 setrgbcolor fill } def + +% line caps (and joins, not currently used) +/lfigbutt 0 def +/lfiground 1 def +/lfigprojecting 2 def +/lfigmiter 0 def +/lfigbevel 2 def + +% shape and labels of the @Box symbol +/lfigbox +{ + 0 0 /SW lfigpointdef + xsize 0 /SE lfigpointdef + xsize ysize /NE lfigpointdef + 0 ysize /NW lfigpointdef + SE 0.5 lfigpmul /S lfigpointdef + NW 0.5 lfigpmul /W lfigpointdef + W SE lfigpadd /E lfigpointdef + S NW lfigpadd /N lfigpointdef + NE 0.5 lfigpmul /CTR lfigpointdef + [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @CurveBox symbol +/lfigcurvebox +{ + + xsize 0.5 mul ysize 0.5 mul /CTR lfigpointdef + xsize 0.5 mul 0 /S lfigpointdef + xsize ysize 0.5 mul /E lfigpointdef + xsize 0.5 mul ysize /N lfigpointdef + 0 ysize 0.5 mul /W lfigpointdef + + xmark 0.293 mul xmark 0.293 mul /SW lfigpointdef + xsize xmark 0.293 mul sub xmark 0.293 mul /SE lfigpointdef + xsize xmark 0.293 mul sub ysize xmark 0.293 mul sub /NE lfigpointdef + xmark 0.293 mul ysize xmark 0.293 mul sub /NW lfigpointdef + + [ xsize ysize 0.5 lfigpmul xmark /lfigcurveboxcircum cvx ] lfigcircumdef + + xmark 0 + xsize xmark sub 0 + [ xsize xmark sub xmark ] + xsize xmark + xsize ysize xmark sub + [ xsize xmark sub ysize xmark sub ] + xsize xmark sub ysize + xmark ysize + [ xmark ysize xmark sub ] + 0 ysize xmark sub + 0 xmark + [ xmark xmark ] + xmark 0 +} def + +% shadow of the @ShadowBox symbol +% its shape and labels are done, somewhat inaccurately, with lfigbox +/lfigshadow +{ xmark 2 mul 0 moveto xsize 0 lineto + xsize ysize xmark 2 mul sub lineto + xsize xmark sub ysize xmark 2 mul sub lineto + xsize xmark sub xmark lineto + xmark 2 mul xmark lineto closepath fill +} def + +% shape and labels of the @Square symbol +/lfigsquare +{ + xsize ysize 0.5 lfigpmul /CTR lfigpointdef + CTR xsize xsize ysize ysize lfigpmax 0.5 lfigpmul lfigpadd /NE lfigpointdef + CTR 0 0 CTR NE lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef + CTR 0 0 CTR NE lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef + CTR 0 0 CTR NE lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef + SW 0.5 lfigpmul SE 0.5 lfigpmul lfigpadd /S lfigpointdef + NW 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /N lfigpointdef + SW 0.5 lfigpmul NW 0.5 lfigpmul lfigpadd /W lfigpointdef + SE 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /E lfigpointdef + [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @Diamond symbol +/lfigdiamond +{ + xsize 0 0.5 lfigpmul /S lfigpointdef + 0 ysize 0.5 lfigpmul /W lfigpointdef + S W lfigpadd /CTR lfigpointdef + CTR W lfigpadd /N lfigpointdef + CTR S lfigpadd /E lfigpointdef + [ xsize ysize 0.5 lfigpmul /lfigdiamondcircum cvx ] lfigcircumdef + S E N W S +} def + +% shape and labels of the @Ellipse symbol +/lfigellipse +{ + xsize 0 0.5 lfigpmul /S lfigpointdef + 0 ysize 0.5 lfigpmul /W lfigpointdef + S W lfigpadd /CTR lfigpointdef + CTR W lfigpadd /N lfigpointdef + CTR S lfigpadd /E lfigpointdef + CTR xsize 0 0.3536 lfigpmul lfigpadd 0 ysize 0.3536 lfigpmul lfigpadd /NE lfigpointdef + 0 ysize 0.3536 lfigpmul CTR xsize 0 0.3536 lfigpmul lfigpadd lfigpsub /SE lfigpointdef + xsize 0 0.3536 lfigpmul CTR lfigpsub 0 ysize 0.3536 lfigpmul lfigpadd /NW lfigpointdef + 0 ysize 0.3536 lfigpmul xsize 0 0.3536 lfigpmul CTR lfigpsub lfigpsub /SW lfigpointdef + [ xsize ysize 0.5 lfigpmul /lfigellipsecircum cvx ] lfigcircumdef + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @Circle symbol +/lfigcircle +{ + xsize ysize 0.5 lfigpmul /CTR lfigpointdef + CTR xsize 0 ysize 0 lfigpmax 0.5 lfigpmul lfigpadd /E lfigpointdef + CTR 0 0 CTR E lfigdistance 45 lfigatangle lfigpadd /NE lfigpointdef + CTR 0 0 CTR E lfigdistance 90 lfigatangle lfigpadd /N lfigpointdef + CTR 0 0 CTR E lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef + CTR 0 0 CTR E lfigdistance 180 lfigatangle lfigpadd /W lfigpointdef + CTR 0 0 CTR E lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef + CTR 0 0 CTR E lfigdistance 270 lfigatangle lfigpadd /S lfigpointdef + CTR 0 0 CTR E lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef + [ S E lfigpsub /lfigellipsecircum cvx ] lfigcircumdef + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @HLine and @HArrow symbols +/lfighline +{ + 0 ymark lfigprevious /FROM lfigpointdef + xsize ymark lfigprevious /TO lfigpointdef +} def + +% shape and labels of the @VLine and @VArrow symbols +/lfigvline +{ + xmark ysize lfigprevious /FROM lfigpointdef + xmark 0 lfigprevious /TO lfigpointdef +} def + +% points of a polygon around base with given no of sides, vert init angle: +% figpolygon ... +/lfigpolygon +{ xsize ysize 0.5 lfigpmul /CTR lfigpointdef + 90 sub CTR 2 copy lfigmax 5 3 roll + [ 4 copy pop /lfigpolycircum cvx ] lfigcircumdef + exch dup 360 exch div exch + 1 1 3 2 roll + { 4 string cvs (P) exch lfigconcat cvn + 6 copy pop pop lfigatangle 2 copy 10 2 roll + 3 2 roll lfigpointdef + dup 3 1 roll add exch + } for + pop lfigatangle +} def + +% next array element: lfiggetnext true +% or false +/lfiggetnext +{ 2 copy exch length ge + { false } + { 2 copy get exch 1 add exch true } ifelse +} def + +% check whether thing is number: lfigisnumbertype +/lfigisnumbertype +{ dup type dup + /integertype eq exch /realtype eq or +} def + +% check whether thing is an array: lfigisarraytype +/lfigisarraytype { dup type /arraytype eq } def + +% get next item: lfiggetnextitem 0 +% or 1 +% or 2 +/lfiggetnextitem +{ lfiggetnext + { lfigisarraytype + { 1 + } + { lfigisnumbertype + { 3 1 roll + lfiggetnext + { lfigisnumbertype + { 4 3 roll exch 2 + } + { pop 3 2 roll pop 0 + } ifelse + } + { 3 2 roll pop 0 + } ifelse + } + { pop 0 + } ifelse + } ifelse + } + { 0 + } ifelse +} def + +% set arc path: bool x1 y1 x2 y2 x0 y0 lfigsetarc +% the path goes from x1 y1 to x2 y2 about centre x0 y0, +% anticlockwise if bool is true else clockwise. +% The orientations of backwards pointing and forwards pointing +% arrowheads are returned in the two angles, and +% the length of the arc is returned in . +/lfigsetarc +{ + 20 dict begin + matrix currentmatrix 8 1 roll + 2 copy translate 2 copy 8 2 roll + 4 2 roll lfigpsub 6 2 roll lfigpsub + dup /y1 exch def dup mul /y1s exch def + dup /x1 exch def dup mul /x1s exch def + dup /y2 exch def dup mul /y2s exch def + dup /x2 exch def dup mul /x2s exch def + + y1s y2s eq + { -1 + } + { y1s x2s mul y2s x1s mul sub y1s y2s sub div + } ifelse + /da exch def + + x1s x2s eq + { -1 + } + { x1s y2s mul x2s y1s mul sub x1s x2s sub div + } ifelse + /db exch def + + da 0 gt db 0 gt and + { /LMax da sqrt db sqrt lfigmax def + /scalex da sqrt LMax div def + /scaley db sqrt LMax div def + scalex scaley scale + 0 0 LMax + 0 0 x1 scalex mul y1 scaley mul lfigangle + 0 0 x2 scalex mul y2 scaley mul lfigangle + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + dup sin scaley mul exch cos scalex mul atan + 2 index 2 index + { 90 add } { 90 sub } ifelse + dup sin scaley mul exch cos scalex mul atan + 5 2 roll % res1 res2 ang1 ang2 anticlockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if lfigpi mul LMax mul 180 div + } + { 0 0 x1 y1 lfigdistance 0 0 x2 y2 lfigdistance eq + 0 0 x1 y1 lfigdistance 0 gt and + { 0 0 + 0 0 x1 y1 lfigdistance + 0 0 x1 y1 lfigangle + 0 0 x2 y2 lfigangle + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + 2 index 2 index + { 90 add } { 90 sub } ifelse + 5 2 roll % res1 res2 ang1 ang2 clockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if lfigpi mul 0 0 x1 y1 lfigdistance mul 180 div + } + { x2 y2 lineto pop + x2 y2 x1 y1 lfigangle + x1 y1 x2 y2 lfigangle + x1 y1 x2 y2 lfigdistance + } ifelse + } ifelse + 4 -1 roll setmatrix + end +} def + +% lfigsetcurve: set up a Bezier curve from x0 y0 to x3 y3 +% and return arrowhead angles and length of curve (actually 0) +% x0 y0 x1 y1 x2 y2 x3 y3 lfigsetcurve +/lfigsetcurve +{ 8 copy curveto pop pop + lfigangle + 5 1 roll + 4 2 roll lfigangle + exch + 0 +} def + +% lfigpaintpath: paint a path of the given shape +% /paint [ shape ] lfigpaintpath - +/lfigpaintpath +{ + 10 dict begin + 0 newpath + /prevseen false def + /curveseen false def + { lfiggetnextitem + dup 0 eq { pop exit } + { 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /curveseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr + lfigsetcurve pop pop pop + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + lfigsetarc pop pop pop + } ifelse + } + { xcurr ycurr lineto + } ifelse + } + { xcurr ycurr moveto + } ifelse + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop pop pop cvx exec + end +} def + +% stroke a path of the given shape in the given linestyle and dash length. +% Return the origin and angle of the backward and forward arrow heads. +% dashlength /linestyle [shape] lfigdopath [ ] [ ] +/lfigdopath +{ + 10 dict begin + 0 + /prevseen false def + /curveseen false def + /backarrow [] def + /fwdarrow [] def + { + lfiggetnextitem + dup 0 eq { pop exit } + { + 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /prevseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { newpath xprev yprev moveto + curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr lfigsetcurve + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + lfigsetarc + } ifelse + } + { xcurr ycurr lineto + xcurr ycurr xprev yprev lfigangle dup 180 sub + xprev yprev xcurr ycurr lfigdistance + } ifelse + 6 index 6 index cvx exec + [ xprev yprev 5 -1 roll ] + backarrow length 0 eq + { /backarrow exch def } + { pop } ifelse + [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def + } if + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop + pop pop pop pop + backarrow length 0 eq { [ 0 0 0 ] } { backarrow } ifelse + fwdarrow length 0 eq { [ 0 0 0 ] } { fwdarrow } ifelse + end +} def + +% lfigdoarrow: draw an arrow head of given form +% dashlength /lstyle /pstyle hfrac height width [ ] lfigdoarrow - +/lfigdoarrow +{ matrix currentmatrix 8 1 roll + dup 0 get 1 index 1 get translate + 2 get rotate + [ 2 index neg 2 index 0 0 + 3 index 3 index neg + 1 index 10 index mul 0 + 7 index 7 index ] + 4 1 roll pop pop pop + dup 3 1 roll + gsave lfigpaintpath grestore lfigdopath pop pop + setmatrix +} def + +% arrow head styles +/lfigopen 0.0 def +/lfighalfopen 0.5 def +/lfigclosed 1.0 def + +% stroke no arrows, forward, back, and both +/lfignoarrow { pop pop pop pop pop pop pop pop } def +/lfigforward { 7 -1 roll lfigdoarrow pop } def +/lfigback { 8 -2 roll pop lfigdoarrow } def +/lfigboth { 8 -1 roll 7 copy lfigdoarrow pop 7 -1 roll lfigdoarrow } def + +% lfigprevious: return previous point on path +/lfigprevious +{ lfigisnumbertype + { 2 copy } + { lfigisarraytype + { 2 index 2 index } + { 0 0 } + ifelse + } ifelse +} def + +% label a point in 2nd top dictionary: /name lfigpointdef - +/lfigpointdef +{ + % (Entering lfigpointdef) lfigdebugprint + [ 4 2 roll transform + /itransform cvx ] cvx + currentdict end + 3 1 roll + % currentdict length currentdict maxlength lt + % { def } + % { exec moveto (too many labels) show stop } + % ifelse + def + begin + % (Leaving lfigpointdef) lfigdebugprint +} def + +% promote labels from second top to third top dictionary +% lfigpromotelabels - +/lfigpromotelabels +{ + % (Entering lfigpromotelabels) lfigdebugprint + currentdict end exch currentdict end + { exch 20 string cvs 2 index + (@) lfigconcat exch lfigconcat cvn exch def + } forall pop begin + % (Leaving lfigpromotelabels) lfigdebugprint +} def + +% show labels (except CIRCUM): - lfigshowlabels - +/lfigshowlabels +{ + % (Entering lfigshowlabels) lfigdebugprint + currentdict end + currentdict + { 1 index 20 string cvs (CIRCUM) search % if CIRCUM in key + { pop pop pop pop pop } + { pop cvx exec 2 copy + newpath 1.5 pt 0 360 arc + 0 setgray fill + /Times-Roman findfont 8 pt scalefont setfont + moveto 0.2 cm 0.1 cm rmoveto 20 string cvs show + } + ifelse + } forall + begin + % (Leaving lfigshowlabels) lfigdebugprint +} def + +% fix an angle to 0 <= res < 360: lfigfixangle +/lfigfixangle +{ + % (Entering lfigfixangle) lfigdebugprint + { dup 0 ge { exit } if + 360 add + } loop + { dup 360 lt { exit } if + 360 sub + } loop + % (Leaving lfigfixangle) lfigdebugprint +} def + +% find point on circumference of box: alpha a b lfigboxcircum x y +/lfigboxcircum +{ + % (Entering lfigboxcircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + 0 0 a b lfigangle /theta exch def + + % if alpha <= theta, return (a, a*tan(alpha)) + alpha theta le + { a a alpha sin mul alpha cos div } + { + % else if alpha <= 180 - theta, return (b*cot(alpha), b) + alpha 180 theta sub le + { b alpha cos mul alpha sin div b } + { + % else if alpha <= 180 + theta, return (-a, -a*tan(alpha)) + alpha 180 theta add le + { a neg a neg alpha sin mul alpha cos div } + { + % else if alpha <= 360 - theta, return (-b*cot(alpha), -b) + alpha 360 theta sub le + { b neg alpha cos mul alpha sin div b neg } + { + % else 360 - theta <= alpha, return (a, a*tan(alpha)) + a a alpha sin mul alpha cos div + } ifelse + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigboxcircum) lfigdebugprint +} def + +% find quadratic roots (assume a != 0): a b c lfigqroots x1 x2 2 +% or x2 1 +% or 0 +/lfigqroots +{ + 4 dict begin + /c exch def + /b exch def + /a exch def + /disc b b mul 4 a c mul mul sub def + disc 0 lt + { 0 + } + { disc 0 eq + { b neg 2 a mul div + 1 + } + { b neg disc sqrt add 2 a mul div + b neg disc sqrt sub 2 a mul div + 2 + } + ifelse + } + ifelse + end +} def + +% work our which quadrant: lfigquadrant <0-3> +/lfigquadrant +{ dup 90 lt + { pop 0 + } + { dup 180 lt + { pop 1 + } + { 270 lt + { 2 + } + { 3 + } ifelse + } ifelse + } ifelse +} def + +% find curvebox circum, assuming upper right quadrant: alpha a b xmk lfigcb x y +/lfigcb +{ + 6 dict begin + /xmk exch def + /b exch def + /a exch def + /alpha exch def + /theta1 0 0 a b xmk sub lfigangle def + /theta2 0 0 a xmk sub b lfigangle def + alpha theta1 le + { % if alpha <= theta1, return (a, a*tan(alpha)) + a a alpha sin mul alpha cos div + } + { alpha theta2 ge + { % else if alpha > theta2, return (b*cot(alpha), b) + b alpha cos mul alpha sin div b + } + { + % else, return the intersection of line and circle + a xmk sub b xmk sub xmk 0 0 alpha lfigcircleintersect + dup 0 eq + { % should never happen, just return any reasonable point + pop + a b 0.5 lfigpmul + } + { 1 eq + { % should never happen, just return the point on top of stack + } + { % the usual case, two points on stack, return the larger + lfigpmax + } ifelse + } ifelse + } ifelse + } ifelse + end +} def + +% find point on circumference of curvebox: alpha a b xmk lfigcurveboxcircum x y +/lfigcurveboxcircum +{ + % (Entering lfigcurveboxcircum) lfigdebugprint + 5 dict begin + /xmk exch def + /b exch def + /a exch def + lfigfixangle /alpha exch def + + % work out which quadrant we are in, and reflect accordingly + /quad alpha lfigquadrant def + quad 0 eq + { alpha a b xmk lfigcb + } + { quad 1 eq + { 180 alpha sub a b xmk lfigcb exch neg exch + } + { quad 2 eq + { alpha 180 sub a b xmk lfigcb neg exch neg exch + } + { 360 alpha sub a b xmk lfigcb neg + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigcurveboxcircum) lfigdebugprint +} def + +% find point on circumference of diamond: alpha a b lfigdiamondcircum x y +/lfigdiamondcircum +{ + % (Entering lfigdiamondcircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + b alpha cos abs mul a alpha sin abs mul add /denom exch def + a b mul alpha cos mul denom div + a b mul alpha sin mul denom div + end + % (Leaving lfigdiamondcircum) lfigdebugprint +} def + +% find point on circumference of ellipse: alpha a b lfigellipsecircum x y +/lfigellipsecircum +{ + % (Entering lfigellipsecircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + b alpha cos mul dup mul a alpha sin mul dup mul add sqrt /denom exch def + a b mul alpha cos mul denom div + a b mul alpha sin mul denom div + end + % (Leaving lfigellipsecircum) lfigdebugprint +} def + +% find point of intersection of two lines each defined by two points +% x1 y1 x2 y2 x3 y3 x4 y4 lfiglineintersect x y +/lfiglineintersect +{ + % (Entering lfiglineintersect) lfigdebugprint + 13 dict begin + /y4 exch def + /x4 exch def + /y3 exch def + /x3 exch def + /y2 exch def + /x2 exch def + /y1 exch def + /x1 exch def + x2 x1 sub /x21 exch def + x4 x3 sub /x43 exch def + y2 y1 sub /y21 exch def + y4 y3 sub /y43 exch def + y21 x43 mul y43 x21 mul sub /det exch def + + % calculate x + y21 x43 mul x1 mul + y43 x21 mul x3 mul sub + y3 y1 sub x21 mul x43 mul add + det div + + % calculate y + x21 y43 mul y1 mul + x43 y21 mul y3 mul sub + x3 x1 sub y21 mul y43 mul add + det neg div + + end + % (Leaving lfiglineintersect) lfigdebugprint +} def + +% find point on circumference of polygon +% alpha radius num theta lfigpolycircum x y +/lfigpolycircum +{ + % (Entering lfigpolycircum) lfigdebugprint + 13 dict begin + /theta exch def + /num exch def + /radius exch def + /alpha exch def + + % calculate delta, the angle from theta to alpha + alpha theta sub lfigfixangle + + % calculate the angle which is the multiple of 360/num closest to delta + 360 num div div truncate 360 num div mul theta add /anglea exch def + + % calculate the next multiple of 360/num after anglea + anglea 360 num div add /angleb exch def + + % intersect the line through these two points with the alpha line + anglea cos anglea sin angleb cos angleb sin + 0 0 alpha cos 2 mul alpha sin 2 mul + lfiglineintersect radius lfigpmul + + end + % (Leaving lfigpolycircum) lfigdebugprint +} def + +% find point of intersection of a point and a circle +% x0 y0 r x1 y1 theta lfigcircleintersect xa ya xb yb 2 +% or xb yb 1 +% or 0 +/lfigcircleintersect +{ + % (Entering lfigcircleintersect) lfigdebugprint + 15 dict begin + /theta exch def + /y1 exch def + /x1 exch def + /r exch def + /y0 exch def + /x0 exch def + + % if sin(theta) = 0 then line is horizontal and y must be y1 + theta sin abs 0.00001 lt + { + /a 1 def + /b -2 x0 mul def + /c x0 dup mul y1 y0 sub dup mul add r dup mul sub def + a b c lfigqroots dup + 0 eq + { pop + 0 + } + { 1 eq + { y1 1 + } + { y1 exch y1 2 + } ifelse + } ifelse + } + { + /ct theta cos theta sin div def + /a ct ct mul 1 add def + /b ct x1 x0 sub mul y1 add y0 sub 2 mul def + /c x1 x0 sub dup mul y1 y0 sub dup mul add r dup mul sub def + a b c lfigqroots dup + 0 eq + { pop + 0 + } + { 1 eq + { y1 add /yb exch def + yb y1 sub ct mul x1 add /xb exch def + xb yb 1 + } + { y1 add /ya exch def + ya y1 sub ct mul x1 add /xa exch def + y1 add /yb exch def + yb y1 sub ct mul x1 add /xb exch def + xa ya xb yb 2 + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigcircleintersect) lfigdebugprint +} def + +% add CIRCUM operator with this body: lfigcircumdef - +/lfigcircumdef +{ % (Entering lfigcircumdef) lfigdebugprint + /CIRCUM exch cvx + currentdict end + 3 1 roll + % currentdict length currentdict maxlength lt + % { def } + % { exec moveto (too many labels) show stop } + % ifelse + def + begin + % (Leaving lfigcircumdef) lfigdebugprint +} def + +end +%%EndResource + +%%BeginResource: procset LoutBasicSetup +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/bsf.lpg + +% width height linethickness louteuro - +% draw a Euro symbol of this width and height with this line thickness +/louteuro { + 20 dict begin + /eurothick exch def + /euroheight exch def + /eurowidth exch def + /eurostrokewidth euroheight 0.8 mul def + /eurostep eurothick 60 cos mul 60 sin div def + /eurotheta 40 def + + % llx lly width thickness louteurobox - + % draw angled box starting at (llx, lly) with given width and thickness + /louteurobox + { + /euroboxthick exch def + /euroboxwidth exch def + newpath moveto euroboxwidth 0 rlineto + eurostep euroboxthick rlineto + euroboxwidth neg 0 rlineto closepath fill + } def + + % lower cross stroke + 0 euroheight 2 div eurothick 1.5 mul sub + eurostrokewidth eurothick louteurobox + + % upper cross stroke + 0 euroheight 2 div eurothick 0.5 mul add + eurostrokewidth eurostep 2 mul add eurothick louteurobox + + % circular part + /eurohctr eurowidth euroheight 2 div eurotheta cos mul sub def + /eurovctr euroheight 2 div def + newpath + eurohctr eurovctr eurovctr eurotheta 350 eurotheta sub arc + eurohctr eurovctr eurovctr eurothick sub 365 eurotheta sub eurotheta arcn + closepath fill + end +} def + +% path for @FullWidthRule symbol +/LoutRule +{ 0 0 moveto xsize 0 lineto +} def + +% path for @Box symbol +/LoutBox +{ 0 0 moveto xsize 0 lineto + xsize ysize lineto 0 ysize lineto + closepath +} def + +% path for @CurveBox symbol +/LoutCurveBox +{ xmark 0 moveto + xsize xmark sub xmark xmark 270 360 arc + xsize xmark sub ysize xmark sub xmark 0 90 arc + xmark ysize xmark sub xmark 90 180 arc + xmark xmark xmark 180 270 arc + closepath +} def + +% path for @ShadowBox symbol +/LoutShadowBox +{ xmark 2 mul 0 moveto xsize 0 lineto + xsize ysize xmark 2 mul sub lineto + xsize xmark sub ysize xmark 2 mul sub lineto + xsize xmark sub xmark lineto + xmark 2 mul xmark lineto + closepath +} def + +% set up dictionary containing margin note data: parity LoutMargSet - +/LoutMargSet +{ /LoutMargDict 12 dict def + LoutMargDict begin + /parity exch def + /matr matrix currentmatrix def + /rightx xsize def + /lefty ysize def % highest allowable point for top of next left note + /righty ysize def % highest allowable point for top of next right note + /max { 2 copy gt { pop } { exch pop } ifelse } def + /min { 2 copy lt { pop } { exch pop } ifelse } def + end +} def + +%translate coordinate system for marginal notes: type LoutMargShift - +% where type 0 is left margin, 1 is right margin, 2 is outer, 3 is inner +/LoutMargShift +{ LoutMargDict begin + + % y coordinate of top of note, in margin coords, before vertical adjust + 0 ysize transform matr itransform exch pop + + % decide whether left or right margin based on type and parity + exch [ 0 1 parity 1 parity sub ] exch get 0 eq + { + % left margin: adjust top of note downwards if overlaps previous note + lefty min + + % bottom of note is new lefty position and also translate position + ysize sub dup /lefty exch def + + % want right edge of note at coordinate zero + xsize neg exch + } + { + % right margin: adjust top of note downwards if overlaps previous note + righty min + + % bottom of note is new righty position and also translate position + ysize sub dup /righty exch def + + % want left edge of note at coordinate rightx + rightx exch + } ifelse + + % stack now contains coord of bottom left corner in margin coordinates + matr setmatrix translate + end +} def + +% create LoutPageDict with left, right, foot, top for @Place symbol users 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5759(Symbol)m 5563(,)s 5670(4)s 220 fnt35 +4816 5468(@SysDatabase)m 240 fnt82 6396 5471(symbol)m 7103(,)s 7210(63)s +220 fnt35 4816 5180(@SysInclude)m 240 fnt82 6164 5183(symbol)m 6871(,)s +6978(68)s 220 fnt35 4816 4892(@SysIncludeGr)m 2(aphic)k 240 fnt82 +6933 4895(symbol)m 7640(,)s 7747(67)s 220 fnt35 4816 4604(@SysPrependGr)m 2(aphic)k +240 fnt82 7055 4607(symbol)m 7762(,)s 7869(67)s 220 fnt35 +4816 4028(t)m 240 fnt82 4933 4031(g)m 1(ap)k 5331(mode)s +5866(,)s 5973(37)s 4816 3743(T)m 19(ables)k 5432(,)s +5539(2)s 4816 3455(T)m 19(ab)k 4(ulation)k 5886(g)s 1(ap)k +6284(mode)s 6819(,)s 6926(37)s 220 fnt35 4816 3164(@T)m 26(ag)k +240 fnt82 5439 3167(parameter)m 9(,)k 6491(def)s 2(ault)k +7212(v)s 6(alue)k 7780(of)s 7998(,)s 8105(16)s +220 fnt35 4816 2876(@T)m 26(agged)k 240 fnt82 5805 2879(symbol)m +6512(,)s 6619(61)s 4816 2591(T)m 19(ar)k 4(get)k +5476(of)s 5747(cross)s 6289(reference)s 7179(,)s 7286(8)s +4816 2303(T)m 19(ar)k 4(get)k 5476(of)s 5747(a)s +5913(g)s 1(alle)k 3(y)k 6494(,)s 6601(11)s +220 fnt35 4816 2012(@T)m 26(arget)k 240 fnt82 5703 2015(symbol)m +6410(,)s 6517(30)s 5056 1727(in)m 5299(detail)s 5831(,)s +5938(25)s 4816 1439(T)m 4912 1391(E)m 5020 1439(X)m 5056 1151(h)m 1(yphenation)k +6243(,)s 6350(39)s 5056 863(optimal)m 5841(paragraph)s 6854(breaking)s +7691(,)s 7798(39)s 4816 575(T)m 16(e)k 3(xtual)k +5582(unit)s 5961(,)s 6068(13)s +grestore + +grestore + +grestore + +pgsave restore +showpage + +%%Page: 96 102 +%%BeginPageSetup +%%PageResources: font Times-Roman +%%+ font Times-Bold +%%+ font Times-Italic +%%+ font Helvetica +/pgsave save def +%%IncludeResource: font Times-Bold +/Times-Boldfnt84 vec2 /Times-Bold LoutRecode +/fnt84 { /Times-Boldfnt84 LoutFont } def +%%IncludeResource: font Times-Italic +/Times-Italicfnt83 vec2 /Times-Italic LoutRecode +/fnt83 { /Times-Italicfnt83 LoutFont } def +0.0500 dup scale 10 setlinewidth +%%EndPageSetup +gsave +0 0 translate +240 fnt82 0.0 0.0 0.0 setrgbcolor 11900 16840 0 16840 240 288 60 LoutGraphic +gsave +LoutPageSet +grestore +gsave +0 16840 translate +0.0000 rotate +9066 14006 0 14006 240 288 60 1417 -15423 LoutGr2 +0 LoutMargSet +grestore +240 fnt84 0 13840(96)m 240 fnt83 8539 13843(Inde)m 4(x)k +220 fnt35 0 13245(@Under)m -3(line)k 240 fnt82 1215 13248(symbol)m +1922(,)s 2029(69)s 0 12960(Underscore)m 1158(character)s 2039(,)s +2146(13)s 220 fnt35 0 12669(@Use)m 240 fnt82 665 12672(symbol)m +1372(,)s 1479(62)s 220 fnt35 0 12093(v)m 240 fnt82 +169 12096(unit)m 548(,)s 655(37)s 240 11808(ef)m 6(fect)k +836(on)s 1133(paragraph)s 2146(breaking)s 2983(,)s 3090(42)s +220 fnt35 0 11517(@V)m 17(Adjust)k 240 fnt82 1017 11520(symbol)m +1724(,)s 1831(49)s 220 fnt35 0 11229(@VContr)m 2(act)k +240 fnt82 1252 11232(symbol)m 1959(,)s 2066(49)s 220 fnt35 +0 10941(@VCo)m 3(v)k 5(er)k 240 fnt82 1006 10944(symbol)m +1713(,)s 1820(50)s 220 fnt35 0 10653(@V)m 17(erbatim)k +240 fnt82 1129 10656(symbol)m 1836(,)s 1943(69)s 0 10368(V)m 26(ertical)k +797(concatenation)s 2129(,)s 2236(36)s 220 fnt35 0 10077(@VExpand)m +240 fnt82 1161 10080(symbol)m 1868(,)s 1975(48)s 220 fnt35 +0 9789(@VLimited)m 240 fnt82 1123 9792(symbol)m 1830(,)s 1937(49)s +220 fnt35 0 9501(@VScale)m 240 fnt82 969 9504(symbol)m 1676(,)s +1783(50)s 220 fnt35 0 9213(@VShift)m 240 fnt82 863 9216(symbol)m +1570(,)s 1677(48)s 220 fnt35 0 8925(@VSpan)m 240 fnt82 +927 8928(symbol)m 1634(,)s 1741(51)s 220 fnt35 0 8349(w)m +240 fnt82 216 8352(unit)m 595(,)s 702(37)s 0 8064(White)m +640(space)s 1174(,)s 1281(13)s 240 7776(when)m 816(signi\207cant)s +1819(,)s 1926(38)s 220 fnt35 0 7485(@Wide)m 240 fnt82 +774 7488(symbol)m 1481(,)s 1588(48)s 0 7200(W)m 9(idth)k +646(of)s 917(an)s 1200(object)s 1791(,)s 1898(24)s +0 6912(W)m 19(ord)k 531(,)s 638(14)s 220 fnt35 +0 6333(x)m 240 fnt82 168 6336(g)m 1(ap)k 566(mode)s +1101(,)s 1208(37)s 220 fnt35 0 5757(@Y)m 4(ield)k +240 fnt82 753 5760(symbol)m 1460(,)s 1567(56)s 220 fnt35 +0 5469(@YUnit)m 240 fnt82 814 5472(symbol)m 1521(,)s 1628(44)s +220 fnt35 0 4893(@ZUnit)m 240 fnt82 802 4896(symbol)m 1509(,)s +1616(44)s +grestore + +grestore + +grestore + +pgsave restore +showpage + +%%Trailer +%%DocumentNeededResources: font Helvetica +%%+ font Helvetica-Oblique +%%+ font Symbol +%%+ font Times-Roman +%%+ font Times-Italic +%%+ font Times-Bold +%%+ font Times-BoldItalic +%%DocumentSuppliedResources: procset LoutStartUp +%%+ procset LoutTabPrependGraphic +%%+ procset LoutFigPrependGraphic +%%+ procset LoutBasicSetup +%%+ encoding vec2 +%%Pages: 102 +%%EOF diff --git a/doc/expert/preface b/doc/expert/preface index 826487f..5dae00b 100644 --- a/doc/expert/preface +++ b/doc/expert/preface @@ -21,7 +21,7 @@ This manual presents Version 3 of Basser Lout, publicly released in September 1994 @Cite { $kingston1995lout.program }. This manual was rendered into PostScript postscript @Index { PostScript } -by Version 3.19 of the Basser Lout interpreter, using the symbols +by Version 3.20 of the Basser Lout interpreter, using the symbols described in the User's Guide @Cite { $kingston1995lout.user }. @DP @Heading { Acknowledgment. } Version 3 has benefited from hundreds of diff --git a/doc/slides/README b/doc/slides/README index 9279092..acbd629 100644 --- a/doc/slides/README +++ b/doc/slides/README @@ -15,4 +15,4 @@ after the second run. A copy of the final outfile.ps is included. Jeff Kingston -9 March 2000 +8 April 2000 diff --git a/doc/slides/all b/doc/slides/all index 98c7d6c..6e5f02e 100644 --- a/doc/slides/all +++ b/doc/slides/all @@ -500,7 +500,7 @@ begin DoPriAbstract(root^.rightchild); end; end; -} &0io +} |0io } @End @Overhead diff --git a/doc/slides/outfile.ps b/doc/slides/outfile.ps new file mode 100644 index 0000000..5a8bd75 --- /dev/null +++ b/doc/slides/outfile.ps @@ -0,0 +1,4473 @@ +%!PS-Adobe-3.0 +%%Creator: Basser Lout Version 3.20 (April 2000) +%%CreationDate: Sat Apr 8 14:54:15 2000 +%%DocumentData: Binary +%%DocumentNeededResources: (atend) +%%DocumentSuppliedResources: (atend) +%%DocumentMedia: A4 595 842 0 white () +%%PageOrder: Ascend +%%Pages: (atend) +%%BoundingBox: 0 0 595 842 +%%EndComments + +%%BeginProlog +%%BeginResource: procset LoutStartUp +/m { 3 1 roll moveto show } bind def +/mo { 3 1 roll moveto true charpath stroke } bind def +/s { exch currentpoint exch pop moveto show } bind def +/so { exch currentpoint exch pop moveto true charpath stroke } bind def +/k { exch neg 0 rmoveto show } bind def +/ko { exch neg 0 rmoveto true charpath stroke } bind def +/ul { gsave setlinewidth dup 3 1 roll + moveto lineto stroke grestore } bind def +/in { 1440 mul } def +/cm { 567 mul } def +/pt { 20 mul } def +/em { 120 mul } def +/sp { louts mul } def +/vs { loutv mul } def +/ft { loutf mul } def +/dg { } def + +/LoutGraphic { + /louts exch def + /loutv exch def + /loutf exch def + /ymark exch def + /xmark exch def + /ysize exch def + /xsize exch def +} def + +/LoutGr2 { gsave translate LoutGraphic gsave } def + +/LoutFont +{ findfont exch scalefont setfont +} bind def + +/LoutRecode { + { findfont dup length dict begin + {1 index /FID ne {def} {pop pop} ifelse} forall + /Encoding exch def + currentdict end definefont pop + } + stopped pop +} bind def + +/BeginEPSF { + /LoutEPSFState save def + /dict_count countdictstack def + /op_count count 1 sub def + userdict begin + /showpage { } def + 0 setgray 0 setlinecap + 1 setlinewidth 0 setlinejoin + 10 setmiterlimit [] 0 setdash newpath + /languagelevel where + { pop languagelevel + 1 ne + { false setstrokeadjust false setoverprint + } if + } if +} bind def + +/EndEPSF { + count op_count sub { pop } repeat + countdictstack dict_count sub { end } repeat + LoutEPSFState restore +} bind def +%%EndResource + +%%BeginResource: encoding vec2 +/vec2 [ +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/space /exclam /quotedbl /numbersign /dollar /percent /ampersand /quoteright +/parenleft /parenright /asterisk /plus /comma /hyphen /period /slash +/zero /one /two /three /four /five /six /seven +/eight /nine /colon /semicolon /less /equal /greater /question +/at /A /B /C /D /E /F /G +/H /I /J /K /L /M /N /O +/P /Q /R /S /T /U /V /W +/X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore +/quoteleft /a /b /c /d /e /f /g +/h /i /j /k /l /m /n /o +/p /q /r /s /t /u /v /w +/x /y /z /braceleft /bar /braceright /asciitilde /.notdef +/quotesinglbase /quotedblbase /ellipsis /OE /oe /quotedblleft /quotedblright /fi +/fl /endash /emdash /bullet /dagger /daggerdbl /florin /fraction +/dotlessi /grave /acute /circumflex /tilde /macron /breve /dotaccent +/dieresis /.notdef /ring /cedilla /.notdef /hungarumlaut /ogonek /caron +/space /exclamdown /cent /sterling /currency /yen /brokenbar /section +/dieresis /copyright /ordfeminine /guillemotleft /logicalnot /hyphen /registered /macron +/degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph /periodcentered +/cedilla /onesuperior /ordmasculine /guillemotright /onequarter /onehalf /threequarters /questiondown +/Agrave /Aacute /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla +/Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex /Idieresis +/Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply +/Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn /germandbls +/agrave /aacute /acircumflex /atilde /adieresis /aring /ae /ccedilla +/egrave /eacute /ecircumflex /edieresis /igrave /iacute /icircumflex /idieresis +/eth /ntilde /ograve /oacute /ocircumflex /otilde /odieresis /divide +/oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn /ydieresis +] def +%%EndResource + +%%BeginResource: procset LoutTabPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/tabf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Tab % +% % +% To assist in avoiding name clashes, the names % +% of all these symbols begin with "ltab". % +% % +% Jeffrey H. Kingston % +% 24 September 1991 % +% 22 December 1992 % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +% linewidth ltabhs - +% horizontal single line +/ltabhs +{ 0 0 moveto xsize 0 lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhsp - +% horizontal single line with projecting ends +/ltabhsp +{ 0 0 moveto xsize 0 lineto + setlinewidth 2 setlinecap stroke +} def + +% linewidth ltabhd - +% horizontal double line +/ltabhd +{ dup dup + 0 0 moveto xsize 0 lineto + 0 exch 3 mul moveto xsize exch 3 mul lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhdb - +% horizontal double line below mark +/ltabhdb +{ dup dup + 0 0 moveto xsize 0 lineto + 0 exch -3 mul moveto xsize exch -3 mul lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhdnw - +% horizontal double line with northwest corner +/ltabhdnw +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + xsize exch 3 mul moveto + -3 mul exch 3 mul lineto + -3 mul 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdne - +% horizontal double line with northeast corner +/ltabhdne +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + 0 exch 3 mul moveto + 3 mul xsize add exch 3 mul lineto + 3 mul xsize add 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdsw - +% horizontal double line with southwest corner +/ltabhdsw +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + xsize exch -3 mul moveto + -3 mul exch -3 mul lineto + -3 mul 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdse - +% horizontal double line with southeast corner +/ltabhdse +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + 0 exch -3 mul moveto + 3 mul xsize add exch -3 mul lineto + 3 mul xsize add 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabvs - +% vertical single line +/ltabvs +{ 0 0 moveto 0 ysize lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabvd - +% vertical double line +/ltabvd +{ dup dup + 0 0 moveto 0 ysize lineto + -3 mul 0 moveto -3 mul ysize lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabvdr - +% vertical double line to right of mark +/ltabvdr +{ dup dup + 0 0 moveto 0 ysize lineto + 3 mul 0 moveto 3 mul ysize lineto + setlinewidth 0 setlinecap stroke +} def +%%EndResource + +%%BeginResource: procset LoutFigPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/figf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Fig Jeffrey H. Kingston % +% Version 2.0 (includes CIRCUM label) January 1992 % +% % +% To assist in avoiding name clashes, the names of all symbols % +% defined here begin with "lfig". However, this is not feasible % +% with user-defined labels and some labels used by users. % +% % +% is two numbers, a point. % +% is one number, a length % +% is one number, an angle in degrees % +% is one number, the preferred length of a dash % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +errordict begin + /handleerror + { + { /Times-Roman findfont 8 pt scalefont setfont + 0 setgray 4 pt 4 pt moveto + $error /errorname get + dup lfigdict exch known + { lfigdict exch get } + { 30 string cvs } ifelse + show + ( Command: ) show + $error /command get 30 string cvs show + } stopped {} if + showpage stop + } def +end + +% concat strings: lfigconcat +% must be defined outside lfigdict since used in lfigpromotelabels +/lfigconcat +{ 2 copy length exch length add string + dup 0 4 index putinterval + dup 3 index length 3 index putinterval + 3 1 roll pop pop +} def + +% lfigdebugprint - +% must be defined outside lfigdict since used in arbitrary places +% /lfigdebugprint +% { print +% (; operand stack:\n) print +% count copy +% count 2 idiv +% { == +% (\n) print +% } repeat +% (\n) print +% } def + +/lfigdict 120 dict def +lfigdict begin + +% error messages +/dictfull (dictfull error: too many labels?) def +/dictstackoverflow (dictstackoverflow error: labels nested too deeply?) def +/execstackoverflow (execstackoverflow error: figure nested too deeply?) def +/limitcheck (limitcheck error: figure nested too deeply or too large?) def +/syntaxerror (syntaxerror error: syntax error in text of figure?) def +/typecheck (typecheck error: syntax error in text of figure?) def +/undefined (undefined error: unknown or misspelt label?) def +/VMError (VMError error: run out of memory?) def + +% push pi onto stack: - lfigpi +/lfigpi 3.14159 def + +% arc directions +/clockwise false def +/anticlockwise true def + +% maximum of two numbers: lfigmax +/lfigmax { 2 copy gt { pop } { exch pop } ifelse } def + +% minimum of two numbers: lfigmin +/lfigmin { 2 copy lt { pop } { exch pop } ifelse } def + +% add two points: lfigpadd +/lfigpadd { exch 3 1 roll add 3 1 roll add exch } def + +% subtract first point from second: lfigpsub +/lfigpsub { 3 2 roll sub 3 1 roll exch sub exch } def + +% max two points: lfigpmax +/lfigpmax { exch 3 1 roll lfigmax 3 1 roll lfigmax exch } def + +% min two points: lfigpmin +/lfigpmin { exch 3 1 roll lfigmin 3 1 roll lfigmin exch } def + +% scalar multiplication: lfigpmul +/lfigpmul { dup 3 1 roll mul 3 1 roll mul exch } def + +% point at angle and distance: lfigatangle +/lfigatangle { 2 copy cos mul 3 1 roll sin mul lfigpadd } def + +% angle from one point to another: lfigangle +/lfigangle { lfigpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def + +% distance between two points: lfigdistance +/lfigdistance { lfigpsub dup mul exch dup mul add sqrt } def + +% difference in x coords: lfigxdistance +/lfigxdistance { pop 3 1 roll pop sub } def + +%difference in y coords: lfigydistance +/lfigydistance { 3 1 roll pop sub exch pop } def + +% stroke a solid line: lfigsolid - +/lfigsolid +{ pop pop [] 0 setdash stroke +} def + +% stroke a lfigdashed line: lfigdashed - +/lfigdashed +{ 2 copy div 2 le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch dup ] 0 setdash } + { dup [ exch 4 2 roll 2 copy div + 1 sub 2 div ceiling dup 4 1 roll + 1 add mul sub exch div ] 0 setdash + } ifelse stroke +} def + +% stroke a lfigcdashed line: lfigcdashed - +/lfigcdashed +{ 2 copy le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch dup ] dup 0 get 2 div setdash } + { dup [ 4 2 roll exch 2 copy exch div + 2 div ceiling div 1 index sub + ] exch 2 div setdash + } ifelse stroke +} def + +% stroke a dotted line: lfigdotted - +/lfigdotted +{ 2 copy le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch 0 exch ] 0 setdash } + { 1 index exch div ceiling div + [ 0 3 2 roll ] 0 setdash + } ifelse stroke +} def + +% stroke a noline line: lfignoline - +/lfignoline +{ pop pop +} def + +% painting (i.e. filling): - lfigwhite - (etc.) +/lfignopaint { } def +/lfignochange { fill } def +/lfigdarkblue { 0.0 0.0 0.5 setrgbcolor fill } def +/lfigblue { 0.0 0.0 1.0 setrgbcolor fill } def +/lfiglightblue { 0.5 0.5 1.0 setrgbcolor fill } def +/lfigdarkgreen { 0.0 0.5 0.0 setrgbcolor fill } def +/lfiggreen { 0.0 1.0 0.0 setrgbcolor fill } def +/lfiglightgreen { 0.5 1.0 0.5 setrgbcolor fill } def +/lfigdarkred { 0.5 0.0 0.0 setrgbcolor fill } def +/lfigred { 1.0 0.0 0.0 setrgbcolor fill } def +/lfiglightred { 1.0 0.5 0.5 setrgbcolor fill } def +/lfigdarkcyan { 0.0 0.5 0.5 setrgbcolor fill } def +/lfigcyan { 0.0 1.0 1.0 setrgbcolor fill } def +/lfiglightcyan { 0.5 1.0 1.0 setrgbcolor fill } def +/lfigdarkmagenta { 0.5 0.0 0.5 setrgbcolor fill } def +/lfigmagenta { 1.0 0.0 1.0 setrgbcolor fill } def +/lfiglightmagenta { 1.0 0.5 1.0 setrgbcolor fill } def +/lfigdarkyellow { 0.5 0.5 0.0 setrgbcolor fill } def +/lfigyellow { 1.0 1.0 0.0 setrgbcolor fill } def +/lfiglightyellow { 1.0 1.0 0.5 setrgbcolor fill } def +/lfigdarkgray { 0.2 0.2 0.2 setrgbcolor fill } def +/lfiggray { 0.5 0.5 0.5 setrgbcolor fill } def +/lfiglightgray { 0.8 0.8 0.8 setrgbcolor fill } def +/lfigdarkgrey { 0.2 0.2 0.2 setrgbcolor fill } def +/lfiggrey { 0.5 0.5 0.5 setrgbcolor fill } def +/lfiglightgrey { 0.8 0.8 0.8 setrgbcolor fill } def +/lfigblack { 0.0 0.0 0.0 setrgbcolor fill } def +/lfigwhite { 1.0 1.0 1.0 setrgbcolor fill } def + +% line caps (and joins, not currently used) +/lfigbutt 0 def +/lfiground 1 def +/lfigprojecting 2 def +/lfigmiter 0 def +/lfigbevel 2 def + +% shape and labels of the @Box symbol +/lfigbox +{ + 0 0 /SW lfigpointdef + xsize 0 /SE lfigpointdef + xsize ysize /NE lfigpointdef + 0 ysize /NW lfigpointdef + SE 0.5 lfigpmul /S lfigpointdef + NW 0.5 lfigpmul /W lfigpointdef + W SE lfigpadd /E lfigpointdef + S NW lfigpadd /N lfigpointdef + NE 0.5 lfigpmul /CTR lfigpointdef + [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @CurveBox symbol +/lfigcurvebox +{ + + xsize 0.5 mul ysize 0.5 mul /CTR lfigpointdef + xsize 0.5 mul 0 /S lfigpointdef + xsize ysize 0.5 mul /E lfigpointdef + xsize 0.5 mul ysize /N lfigpointdef + 0 ysize 0.5 mul /W lfigpointdef + + xmark 0.293 mul xmark 0.293 mul /SW lfigpointdef + xsize xmark 0.293 mul sub xmark 0.293 mul /SE lfigpointdef + xsize xmark 0.293 mul sub ysize xmark 0.293 mul sub /NE lfigpointdef + xmark 0.293 mul ysize xmark 0.293 mul sub /NW lfigpointdef + + [ xsize ysize 0.5 lfigpmul xmark /lfigcurveboxcircum cvx ] lfigcircumdef + + xmark 0 + xsize xmark sub 0 + [ xsize xmark sub xmark ] + xsize xmark + xsize ysize xmark sub + [ xsize xmark sub ysize xmark sub ] + xsize xmark sub ysize + xmark ysize + [ xmark ysize xmark sub ] + 0 ysize xmark sub + 0 xmark + [ xmark xmark ] + xmark 0 +} def + +% shadow of the @ShadowBox symbol +% its shape and labels are done, somewhat inaccurately, with lfigbox +/lfigshadow +{ xmark 2 mul 0 moveto xsize 0 lineto + xsize ysize xmark 2 mul sub lineto + xsize xmark sub ysize xmark 2 mul sub lineto + xsize xmark sub xmark lineto + xmark 2 mul xmark lineto closepath fill +} def + +% shape and labels of the @Square symbol +/lfigsquare +{ + xsize ysize 0.5 lfigpmul /CTR lfigpointdef + CTR xsize xsize ysize ysize lfigpmax 0.5 lfigpmul lfigpadd /NE lfigpointdef + CTR 0 0 CTR NE lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef + CTR 0 0 CTR NE lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef + CTR 0 0 CTR NE lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef + SW 0.5 lfigpmul SE 0.5 lfigpmul lfigpadd /S lfigpointdef + NW 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /N lfigpointdef + SW 0.5 lfigpmul NW 0.5 lfigpmul lfigpadd /W lfigpointdef + SE 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /E lfigpointdef + [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @Diamond symbol +/lfigdiamond +{ + xsize 0 0.5 lfigpmul /S lfigpointdef + 0 ysize 0.5 lfigpmul /W lfigpointdef + S W lfigpadd /CTR lfigpointdef + CTR W lfigpadd /N lfigpointdef + CTR S lfigpadd /E lfigpointdef + [ xsize ysize 0.5 lfigpmul /lfigdiamondcircum cvx ] lfigcircumdef + S E N W S +} def + +% shape and labels of the @Ellipse symbol +/lfigellipse +{ + xsize 0 0.5 lfigpmul /S lfigpointdef + 0 ysize 0.5 lfigpmul /W lfigpointdef + S W lfigpadd /CTR lfigpointdef + CTR W lfigpadd /N lfigpointdef + CTR S lfigpadd /E lfigpointdef + CTR xsize 0 0.3536 lfigpmul lfigpadd 0 ysize 0.3536 lfigpmul lfigpadd /NE lfigpointdef + 0 ysize 0.3536 lfigpmul CTR xsize 0 0.3536 lfigpmul lfigpadd lfigpsub /SE lfigpointdef + xsize 0 0.3536 lfigpmul CTR lfigpsub 0 ysize 0.3536 lfigpmul lfigpadd /NW lfigpointdef + 0 ysize 0.3536 lfigpmul xsize 0 0.3536 lfigpmul CTR lfigpsub lfigpsub /SW lfigpointdef + [ xsize ysize 0.5 lfigpmul /lfigellipsecircum cvx ] lfigcircumdef + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @Circle symbol +/lfigcircle +{ + xsize ysize 0.5 lfigpmul /CTR lfigpointdef + CTR xsize 0 ysize 0 lfigpmax 0.5 lfigpmul lfigpadd /E lfigpointdef + CTR 0 0 CTR E lfigdistance 45 lfigatangle lfigpadd /NE lfigpointdef + CTR 0 0 CTR E lfigdistance 90 lfigatangle lfigpadd /N lfigpointdef + CTR 0 0 CTR E lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef + CTR 0 0 CTR E lfigdistance 180 lfigatangle lfigpadd /W lfigpointdef + CTR 0 0 CTR E lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef + CTR 0 0 CTR E lfigdistance 270 lfigatangle lfigpadd /S lfigpointdef + CTR 0 0 CTR E lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef + [ S E lfigpsub /lfigellipsecircum cvx ] lfigcircumdef + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @HLine and @HArrow symbols +/lfighline +{ + 0 ymark lfigprevious /FROM lfigpointdef + xsize ymark lfigprevious /TO lfigpointdef +} def + +% shape and labels of the @VLine and @VArrow symbols +/lfigvline +{ + xmark ysize lfigprevious /FROM lfigpointdef + xmark 0 lfigprevious /TO lfigpointdef +} def + +% points of a polygon around base with given no of sides, vert init angle: +% figpolygon ... +/lfigpolygon +{ xsize ysize 0.5 lfigpmul /CTR lfigpointdef + 90 sub CTR 2 copy lfigmax 5 3 roll + [ 4 copy pop /lfigpolycircum cvx ] lfigcircumdef + exch dup 360 exch div exch + 1 1 3 2 roll + { 4 string cvs (P) exch lfigconcat cvn + 6 copy pop pop lfigatangle 2 copy 10 2 roll + 3 2 roll lfigpointdef + dup 3 1 roll add exch + } for + pop lfigatangle +} def + +% next array element: lfiggetnext true +% or false +/lfiggetnext +{ 2 copy exch length ge + { false } + { 2 copy get exch 1 add exch true } ifelse +} def + +% check whether thing is number: lfigisnumbertype +/lfigisnumbertype +{ dup type dup + /integertype eq exch /realtype eq or +} def + +% check whether thing is an array: lfigisarraytype +/lfigisarraytype { dup type /arraytype eq } def + +% get next item: lfiggetnextitem 0 +% or 1 +% or 2 +/lfiggetnextitem +{ lfiggetnext + { lfigisarraytype + { 1 + } + { lfigisnumbertype + { 3 1 roll + lfiggetnext + { lfigisnumbertype + { 4 3 roll exch 2 + } + { pop 3 2 roll pop 0 + } ifelse + } + { 3 2 roll pop 0 + } ifelse + } + { pop 0 + } ifelse + } ifelse + } + { 0 + } ifelse +} def + +% set arc path: bool x1 y1 x2 y2 x0 y0 lfigsetarc +% the path goes from x1 y1 to x2 y2 about centre x0 y0, +% anticlockwise if bool is true else clockwise. +% The orientations of backwards pointing and forwards pointing +% arrowheads are returned in the two angles, and +% the length of the arc is returned in . +/lfigsetarc +{ + 20 dict begin + matrix currentmatrix 8 1 roll + 2 copy translate 2 copy 8 2 roll + 4 2 roll lfigpsub 6 2 roll lfigpsub + dup /y1 exch def dup mul /y1s exch def + dup /x1 exch def dup mul /x1s exch def + dup /y2 exch def dup mul /y2s exch def + dup /x2 exch def dup mul /x2s exch def + + y1s y2s eq + { -1 + } + { y1s x2s mul y2s x1s mul sub y1s y2s sub div + } ifelse + /da exch def + + x1s x2s eq + { -1 + } + { x1s y2s mul x2s y1s mul sub x1s x2s sub div + } ifelse + /db exch def + + da 0 gt db 0 gt and + { /LMax da sqrt db sqrt lfigmax def + /scalex da sqrt LMax div def + /scaley db sqrt LMax div def + scalex scaley scale + 0 0 LMax + 0 0 x1 scalex mul y1 scaley mul lfigangle + 0 0 x2 scalex mul y2 scaley mul lfigangle + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + dup sin scaley mul exch cos scalex mul atan + 2 index 2 index + { 90 add } { 90 sub } ifelse + dup sin scaley mul exch cos scalex mul atan + 5 2 roll % res1 res2 ang1 ang2 anticlockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if lfigpi mul LMax mul 180 div + } + { 0 0 x1 y1 lfigdistance 0 0 x2 y2 lfigdistance eq + 0 0 x1 y1 lfigdistance 0 gt and + { 0 0 + 0 0 x1 y1 lfigdistance + 0 0 x1 y1 lfigangle + 0 0 x2 y2 lfigangle + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + 2 index 2 index + { 90 add } { 90 sub } ifelse + 5 2 roll % res1 res2 ang1 ang2 clockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if lfigpi mul 0 0 x1 y1 lfigdistance mul 180 div + } + { x2 y2 lineto pop + x2 y2 x1 y1 lfigangle + x1 y1 x2 y2 lfigangle + x1 y1 x2 y2 lfigdistance + } ifelse + } ifelse + 4 -1 roll setmatrix + end +} def + +% lfigsetcurve: set up a Bezier curve from x0 y0 to x3 y3 +% and return arrowhead angles and length of curve (actually 0) +% x0 y0 x1 y1 x2 y2 x3 y3 lfigsetcurve +/lfigsetcurve +{ 8 copy curveto pop pop + lfigangle + 5 1 roll + 4 2 roll lfigangle + exch + 0 +} def + +% lfigpaintpath: paint a path of the given shape +% /paint [ shape ] lfigpaintpath - +/lfigpaintpath +{ + 10 dict begin + 0 newpath + /prevseen false def + /curveseen false def + { lfiggetnextitem + dup 0 eq { pop exit } + { 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /curveseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr + lfigsetcurve pop pop pop + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + lfigsetarc pop pop pop + } ifelse + } + { xcurr ycurr lineto + } ifelse + } + { xcurr ycurr moveto + } ifelse + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop pop pop cvx exec + end +} def + +% stroke a path of the given shape in the given linestyle and dash length. +% Return the origin and angle of the backward and forward arrow heads. +% dashlength /linestyle [shape] lfigdopath [ ] [ ] +/lfigdopath +{ + 10 dict begin + 0 + /prevseen false def + /curveseen false def + /backarrow [] def + /fwdarrow [] def + { + lfiggetnextitem + dup 0 eq { pop exit } + { + 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /prevseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { newpath xprev yprev moveto + curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr lfigsetcurve + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + lfigsetarc + } ifelse + } + { xcurr ycurr lineto + xcurr ycurr xprev yprev lfigangle dup 180 sub + xprev yprev xcurr ycurr lfigdistance + } ifelse + 6 index 6 index cvx exec + [ xprev yprev 5 -1 roll ] + backarrow length 0 eq + { /backarrow exch def } + { pop } ifelse + [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def + } if + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop + pop pop pop pop + backarrow length 0 eq { [ 0 0 0 ] } { backarrow } ifelse + fwdarrow length 0 eq { [ 0 0 0 ] } { fwdarrow } ifelse + end +} def + +% lfigdoarrow: draw an arrow head of given form +% dashlength /lstyle /pstyle hfrac height width [ ] lfigdoarrow - +/lfigdoarrow +{ matrix currentmatrix 8 1 roll + dup 0 get 1 index 1 get translate + 2 get rotate + [ 2 index neg 2 index 0 0 + 3 index 3 index neg + 1 index 10 index mul 0 + 7 index 7 index ] + 4 1 roll pop pop pop + dup 3 1 roll + gsave lfigpaintpath grestore lfigdopath pop pop + setmatrix +} def + +% arrow head styles +/lfigopen 0.0 def +/lfighalfopen 0.5 def +/lfigclosed 1.0 def + +% stroke no arrows, forward, back, and both +/lfignoarrow { pop pop pop pop pop pop pop pop } def +/lfigforward { 7 -1 roll lfigdoarrow pop } def +/lfigback { 8 -2 roll pop lfigdoarrow } def +/lfigboth { 8 -1 roll 7 copy lfigdoarrow pop 7 -1 roll lfigdoarrow } def + +% lfigprevious: return previous point on path +/lfigprevious +{ lfigisnumbertype + { 2 copy } + { lfigisarraytype + { 2 index 2 index } + { 0 0 } + ifelse + } ifelse +} def + +% label a point in 2nd top dictionary: /name lfigpointdef - +/lfigpointdef +{ + % (Entering lfigpointdef) lfigdebugprint + [ 4 2 roll transform + /itransform cvx ] cvx + currentdict end + 3 1 roll + % currentdict length currentdict maxlength lt + % { def } + % { exec moveto (too many labels) show stop } + % ifelse + def + begin + % (Leaving lfigpointdef) lfigdebugprint +} def + +% promote labels from second top to third top dictionary +% lfigpromotelabels - +/lfigpromotelabels +{ + % (Entering lfigpromotelabels) lfigdebugprint + currentdict end exch currentdict end + { exch 20 string cvs 2 index + (@) lfigconcat exch lfigconcat cvn exch def + } forall pop begin + % (Leaving lfigpromotelabels) lfigdebugprint +} def + +% show labels (except CIRCUM): - lfigshowlabels - +/lfigshowlabels +{ + % (Entering lfigshowlabels) lfigdebugprint + currentdict end + currentdict + { 1 index 20 string cvs (CIRCUM) search % if CIRCUM in key + { pop pop pop pop pop } + { pop cvx exec 2 copy + newpath 1.5 pt 0 360 arc + 0 setgray fill + /Times-Roman findfont 8 pt scalefont setfont + moveto 0.2 cm 0.1 cm rmoveto 20 string cvs show + } + ifelse + } forall + begin + % (Leaving lfigshowlabels) lfigdebugprint +} def + +% fix an angle to 0 <= res < 360: lfigfixangle +/lfigfixangle +{ + % (Entering lfigfixangle) lfigdebugprint + { dup 0 ge { exit } if + 360 add + } loop + { dup 360 lt { exit } if + 360 sub + } loop + % (Leaving lfigfixangle) lfigdebugprint +} def + +% find point on circumference of box: alpha a b lfigboxcircum x y +/lfigboxcircum +{ + % (Entering lfigboxcircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + 0 0 a b lfigangle /theta exch def + + % if alpha <= theta, return (a, a*tan(alpha)) + alpha theta le + { a a alpha sin mul alpha cos div } + { + % else if alpha <= 180 - theta, return (b*cot(alpha), b) + alpha 180 theta sub le + { b alpha cos mul alpha sin div b } + { + % else if alpha <= 180 + theta, return (-a, -a*tan(alpha)) + alpha 180 theta add le + { a neg a neg alpha sin mul alpha cos div } + { + % else if alpha <= 360 - theta, return (-b*cot(alpha), -b) + alpha 360 theta sub le + { b neg alpha cos mul alpha sin div b neg } + { + % else 360 - theta <= alpha, return (a, a*tan(alpha)) + a a alpha sin mul alpha cos div + } ifelse + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigboxcircum) lfigdebugprint +} def + +% find quadratic roots (assume a != 0): a b c lfigqroots x1 x2 2 +% or x2 1 +% or 0 +/lfigqroots +{ + 4 dict begin + /c exch def + /b exch def + /a exch def + /disc b b mul 4 a c mul mul sub def + disc 0 lt + { 0 + } + { disc 0 eq + { b neg 2 a mul div + 1 + } + { b neg disc sqrt add 2 a mul div + b neg disc sqrt sub 2 a mul div + 2 + } + ifelse + } + ifelse + end +} def + +% work our which quadrant: lfigquadrant <0-3> +/lfigquadrant +{ dup 90 lt + { pop 0 + } + { dup 180 lt + { pop 1 + } + { 270 lt + { 2 + } + { 3 + } ifelse + } ifelse + } ifelse +} def + +% find curvebox circum, assuming upper right quadrant: alpha a b xmk lfigcb x y +/lfigcb +{ + 6 dict begin + /xmk exch def + /b exch def + /a exch def + /alpha exch def + /theta1 0 0 a b xmk sub lfigangle def + /theta2 0 0 a xmk sub b lfigangle def + alpha theta1 le + { % if alpha <= theta1, return (a, a*tan(alpha)) + a a alpha sin mul alpha cos div + } + { alpha theta2 ge + { % else if alpha > theta2, return (b*cot(alpha), b) + b alpha cos mul alpha sin div b + } + { + % else, return the intersection of line and circle + a xmk sub b xmk sub xmk 0 0 alpha lfigcircleintersect + dup 0 eq + { % should never happen, just return any reasonable point + pop + a b 0.5 lfigpmul + } + { 1 eq + { % should never happen, just return the point on top of stack + } + { % the usual case, two points on stack, return the larger + lfigpmax + } ifelse + } ifelse + } ifelse + } ifelse + end +} def + +% find point on circumference of curvebox: alpha a b xmk lfigcurveboxcircum x y +/lfigcurveboxcircum +{ + % (Entering lfigcurveboxcircum) lfigdebugprint + 5 dict begin + /xmk exch def + /b exch def + /a exch def + lfigfixangle /alpha exch def + + % work out which quadrant we are in, and reflect accordingly + /quad alpha lfigquadrant def + quad 0 eq + { alpha a b xmk lfigcb + } + { quad 1 eq + { 180 alpha sub a b xmk lfigcb exch neg exch + } + { quad 2 eq + { alpha 180 sub a b xmk lfigcb neg exch neg exch + } + { 360 alpha sub a b xmk lfigcb neg + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigcurveboxcircum) lfigdebugprint +} def + +% find point on circumference of diamond: alpha a b lfigdiamondcircum x y +/lfigdiamondcircum +{ + % (Entering lfigdiamondcircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + b alpha cos abs mul a alpha sin abs mul add /denom exch def + a b mul alpha cos mul denom div + a b mul alpha sin mul denom div + end + % (Leaving lfigdiamondcircum) lfigdebugprint +} def + +% find point on circumference of ellipse: alpha a b lfigellipsecircum x y +/lfigellipsecircum +{ + % (Entering lfigellipsecircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + b alpha cos mul dup mul a alpha sin mul dup mul add sqrt /denom exch def + a b mul alpha cos mul denom div + a b mul alpha sin mul denom div + end + % (Leaving lfigellipsecircum) lfigdebugprint +} def + +% find point of intersection of two lines each defined by two points +% x1 y1 x2 y2 x3 y3 x4 y4 lfiglineintersect x y +/lfiglineintersect +{ + % (Entering lfiglineintersect) lfigdebugprint + 13 dict begin + /y4 exch def + /x4 exch def + /y3 exch def + /x3 exch def + /y2 exch def + /x2 exch def + /y1 exch def + /x1 exch def + x2 x1 sub /x21 exch def + x4 x3 sub /x43 exch def + y2 y1 sub /y21 exch def + y4 y3 sub /y43 exch def + y21 x43 mul y43 x21 mul sub /det exch def + + % calculate x + y21 x43 mul x1 mul + y43 x21 mul x3 mul sub + y3 y1 sub x21 mul x43 mul add + det div + + % calculate y + x21 y43 mul y1 mul + x43 y21 mul y3 mul sub + x3 x1 sub y21 mul y43 mul add + det neg div + + end + % (Leaving lfiglineintersect) lfigdebugprint +} def + +% find point on circumference of polygon +% alpha radius num theta lfigpolycircum x y +/lfigpolycircum +{ + % (Entering lfigpolycircum) lfigdebugprint + 13 dict begin + /theta exch def + /num exch def + /radius exch def + /alpha exch def + + % calculate delta, the angle from theta to alpha + alpha theta sub lfigfixangle + + % calculate the angle which is the multiple of 360/num closest to delta + 360 num div div truncate 360 num div mul theta add /anglea exch def + + % calculate the next multiple of 360/num after anglea + anglea 360 num div add /angleb exch def + + % intersect the line through these two points with the alpha line + anglea cos anglea sin angleb cos angleb sin + 0 0 alpha cos 2 mul alpha sin 2 mul + lfiglineintersect radius lfigpmul + + end + % (Leaving lfigpolycircum) lfigdebugprint +} def + +% find point of intersection of a point and a circle +% x0 y0 r x1 y1 theta lfigcircleintersect xa ya xb yb 2 +% or xb yb 1 +% or 0 +/lfigcircleintersect +{ + % (Entering lfigcircleintersect) lfigdebugprint + 15 dict begin + /theta exch def + /y1 exch def + /x1 exch def + /r exch def + /y0 exch def + /x0 exch def + + % if sin(theta) = 0 then line is horizontal and y must be y1 + theta sin abs 0.00001 lt + { + /a 1 def + /b -2 x0 mul def + /c x0 dup mul y1 y0 sub dup mul add r dup mul sub def + a b c lfigqroots dup + 0 eq + { pop + 0 + } + { 1 eq + { y1 1 + } + { y1 exch y1 2 + } ifelse + } ifelse + } + { + /ct theta cos theta sin div def + /a ct ct mul 1 add def + /b ct x1 x0 sub mul y1 add y0 sub 2 mul def + /c x1 x0 sub dup mul y1 y0 sub dup mul add r dup mul sub def + a b c lfigqroots dup + 0 eq + { pop + 0 + } + { 1 eq + { y1 add /yb exch def + yb y1 sub ct mul x1 add /xb exch def + xb yb 1 + } + { y1 add /ya exch def + ya y1 sub ct mul x1 add /xa exch def + y1 add /yb exch def + yb y1 sub ct mul x1 add /xb exch def + xa ya xb yb 2 + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigcircleintersect) lfigdebugprint +} def + +% add CIRCUM operator with this body: lfigcircumdef - +/lfigcircumdef +{ % (Entering lfigcircumdef) lfigdebugprint + /CIRCUM exch cvx + currentdict end + 3 1 roll + % currentdict length currentdict maxlength lt + % { def } + % { exec moveto (too many labels) show stop } + % ifelse + def + begin + % (Leaving lfigcircumdef) lfigdebugprint +} def + +end +%%EndResource + +%%BeginResource: procset LoutGraphPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/graphf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Graph (Version 1.0) % +% % +% Version 1.0 by Jeffrey H. Kingston, December 1993. % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +errordict begin + /handleerror + { + { /Times-Roman findfont 8 pt scalefont setfont + 0 setgray 4 pt 4 pt moveto + $error /errorname get + dup lgraphdict exch known + { lgraphdict exch get } + { 30 string cvs } ifelse + show + ( Command: ) show + $error /command get 30 string cvs show + } stopped {} if + showpage stop + } def +end + +/lgraphdict 200 dict def +lgraphdict begin + +% error messages +/dictfull (dictfull error) def +/dictstackoverflow (dictstackoverflow error) def +/execstackoverflow (execstackoverflow error: expression too complex?) def +/limitcheck (limitcheck error: graph too complex or too large?) def +/syntaxerror (syntaxerror error: syntax error in text of graph?) def +/typecheck (typecheck error: syntax error in text of graph?) def +/undefined (undefined error: unknown or misspelt symbol?) def +/rangecheck (rangecheck error: undefined expression (e.g. divide by zero)?) def +/VMError (VMError error: run out of memory?) def + +% random number between x and y inclusive: x y dorand num +/dorand { 1 index sub 1 add rand exch mod add } def + +% log to given base: base num dolog num +/dolog { ln exch ln div } def + +% maximum of two numbers: max +/max { 2 copy gt { pop } { exch pop } ifelse } def + +% add two points: padd +/padd { exch 3 1 roll add 3 1 roll add exch } def + +% subtract first point from second: psub +/psub { 3 2 roll sub 3 1 roll exch sub exch } def + +% distance between two points: distance +/distance { psub dup mul exch dup mul add sqrt } def + +% point at angle and distance: atangle +/atangle { 2 copy cos mul 3 1 roll sin mul padd } def + +% angle from one point to another: angle +/angle { psub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def + + +% set up for line +% - linesetup +/linesetup +{ newpath + xcurr ycurr trpoint xprev yprev trpoint + 4 copy moveto lineto distance dashlength +} def + +% set up for icon-avoiding line +% - ilinesetup +/ilinesetup +{ newpath + xprev yprev trpoint xcurr ycurr trpoint 4 copy + 4 copy angle symbolsize 1.5 mul exch 4 2 roll pop pop atangle + 6 2 roll 4 2 roll + 4 copy angle symbolsize 1.5 mul exch 4 2 roll pop pop atangle + 4 copy moveto lineto distance dashlength +} def + + +% stroke a solid line: solid - +/solid +{ pop pop [] 0 setdash linewidth setlinewidth stroke +} def + +% stroke a dashed line: dashed - +/dashed +{ 2 copy 2 mul le 1 index 0 le or + { exch pop 1 pt max [ exch dup ] 0 setdash } + { dup [ exch 4 2 roll 2 copy div + 1 sub 2 div ceiling dup 4 1 roll + 1 add mul sub exch div ] 0 setdash + } ifelse linewidth setlinewidth stroke +} def + +% stroke a cdashed line: cdashed - +/cdashed +{ 2 copy le 1 index 0 le or + { exch pop 1 pt max [ exch dup ] dup 0 get 2 div setdash } + { dup [ 4 2 roll exch 2 copy exch div + 2 div ceiling div 1 index sub + ] exch 2 div setdash + } ifelse linewidth setlinewidth stroke +} def + +% stroke a dotted line: dotted - +/dotted +{ 2 copy le 1 index 0 le or + { exch pop 1 pt max [ exch 0 exch ] 0 setdash } + { 1 index exch div ceiling div 0.99999 mul + [ 0 3 2 roll ] 0 setdash + } ifelse gsave 1 setlinecap linewidth setlinewidth stroke grestore newpath +} def + +% stroke a noline line: noline - +/noline +{ pop pop +} def + +% stroke a y histogram: - yhisto - +/yhisto +{ xprev yleft trpoint yextra sub moveto + xprev yprev trpoint lineto + xcurr yprev trpoint lineto + xcurr yleft trpoint yextra sub lineto + linewidth setlinewidth stroke +} def + +% stroke an x histogram: - xhisto - +/xhisto +{ xleft yprev trpoint exch xextra sub exch moveto + xcurr yprev trpoint lineto + xcurr ycurr trpoint lineto + xleft ycurr trpoint exch xextra sub exch lineto + linewidth setlinewidth stroke +} def + +% stroke a surface y histogram: - surfaceyhisto - +/surfaceyhisto +{ firstpair + { xprev yleft trpoint yextra sub moveto + xprev yprev trpoint lineto + } + { xprev yprev trpoint moveto + } ifelse + xcurr yprev trpoint lineto + lastpair + { xcurr yleft trpoint yextra sub lineto + } + { xcurr ycurr trpoint lineto + } ifelse + linewidth setlinewidth stroke +} def + +% stroke a surface x histogram: - surfacexhisto - +/surfacexhisto +{ firstpair + { xleft yprev trpoint exch xextra sub exch moveto + } + { xprev yprev trpoint moveto + } ifelse + xcurr yprev trpoint lineto + xcurr ycurr trpoint lineto + lastpair + { xleft ycurr trpoint exch xextra sub exch lineto + } if + linewidth setlinewidth stroke +} def + +% stroke a filled y histogram: - filledyhisto - +/filledyhisto +{ + linewidth setlinewidth + xprev yleft trpoint exch currentlinewidth 2 div add exch yextra sub moveto + xprev yprev trpoint exch currentlinewidth 2 div add exch lineto + xcurr yprev trpoint exch currentlinewidth 2 div sub exch lineto + xcurr yleft trpoint exch currentlinewidth 2 div sub exch yextra sub lineto + closepath fill +} def + +% stroke a filled x histogram: - filledxhisto - +/filledxhisto +{ + linewidth setlinewidth + xleft yprev trpoint currentlinewidth 2 div add exch xextra sub exch moveto + xcurr yprev trpoint currentlinewidth 2 div add lineto + xcurr ycurr trpoint currentlinewidth 2 div sub lineto + xleft ycurr trpoint currentlinewidth 2 div sub exch xextra sub exch lineto + closepath fill +} def + + +% cross: show a small cross +/cross +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg symbolsize neg rmoveto + symbolsize 2 mul symbolsize 2 mul rlineto + 0 symbolsize -2 mul rmoveto + symbolsize -2 mul symbolsize 2 mul rlineto + [] 0 setdash stroke +} def + +% plus: show a small plus +/plus +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg 0 rmoveto + symbolsize 2 mul 0 rlineto + symbolsize neg symbolsize neg rmoveto + 0 symbolsize 2 mul rlineto + [] 0 setdash stroke +} def + +% square: show a small square +/square +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg symbolsize neg rmoveto + symbolsize 2 mul 0 rlineto + 0 symbolsize 2 mul rlineto + symbolsize -2 mul 0 rlineto + closepath [] 0 setdash stroke +} def + +% filledsquare: show a small filled square +/filledsquare +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg symbolsize neg rmoveto + symbolsize 2 mul 0 rlineto + 0 symbolsize 2 mul rlineto + symbolsize -2 mul 0 rlineto + closepath gsave [] 0 setdash stroke grestore fill +} def + +% diamond: show a small diamond +/diamond +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg 0 rmoveto + symbolsize symbolsize neg rlineto + symbolsize symbolsize rlineto + symbolsize neg symbolsize rlineto + closepath [] 0 setdash stroke +} def + +% filleddiamond: show a small filled diamond +/filleddiamond +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg 0 rmoveto + symbolsize symbolsize neg rlineto + symbolsize symbolsize rlineto + symbolsize neg symbolsize rlineto + closepath gsave [] 0 setdash stroke grestore fill +} def + +% circle: show a small circle +/circle +{ newpath + xcurr ycurr trpoint symbolsize 0 360 arc [] 0 setdash stroke +} def + +% filledcircle: show a small filled circle +/filledcircle +{ newpath + xcurr ycurr trpoint symbolsize 0 360 arc gsave [] 0 setdash stroke grestore fill +} def + +% triangle: show a small triangle +/triangle +{ newpath + xcurr ycurr trpoint moveto + 0 symbolsize 1.5 mul rmoveto + symbolsize neg symbolsize -2.5 mul rlineto + symbolsize 2 mul 0 rlineto + closepath [] 0 setdash stroke +} def + +% filledtriangle: show a small filled triangle +/filledtriangle +{ newpath + xcurr ycurr trpoint moveto + 0 symbolsize 1.5 mul rmoveto + symbolsize neg symbolsize -2.5 mul rlineto + symbolsize 2 mul 0 rlineto + closepath gsave [] 0 setdash stroke grestore fill +} def + + +%plog: like log only with a base, and protected from failing if <= 0 +% base x plog res +/plog { dup 0 le { pop pop 0 } { ln exch ln div } ifelse } def + +% xtr: transform one x value logarithmically if xlog > 1 +% xtr +/xtr +{ xlog 1 gt + { xlog exch plog + } if +} def + +% ytr: transform one y value logarithmically if ylog > 1 +% ytr +/ytr +{ ylog 1 gt + { ylog exch plog + } if +} def + +% % trpoint: transform (x, y) in graph space into (x', y') in print space +% % x y trpoint x' y' +% /trpoint +% { exch xtr trxmin sub trxmax trxmin sub div xwidth mul xextra add +% exch ytr trymin sub trymax trymin sub div ywidth mul yextra add +% } def + + +% trpoint: transform (x, y) in graph space into (x', y') in print space +% x y trpoint x' y' +/trpoint +{ exch xtr xdecr { trxmax exch sub } { trxmin sub } ifelse + trxmax trxmin sub div xwidth mul xextra add + + exch ytr ydecr { trymax exch sub } { trymin sub } ifelse + trymax trymin sub div ywidth mul yextra add +} def + + +% yonly: interpolate x values 1, 2, ... into data +% [ data ] yonly [ newdata ] +/yonly +{ dup /tmp exch def + length [ exch 1 exch 1 exch + { dup tmp exch 1 sub get + } for + ] +} def + +% xonly: interpolate y values 1, 2, ... into data +% [ data ] yonly [ newdata ] +/xonly +{ dup /tmp exch def + length [ exch 1 exch 1 exch + { dup tmp exch 1 sub get exch + } for + ] +} def + +% xandy: no interpolation of x or y values +% [ data ] xandy [ data ] +/xandy {} def + + +% expstringwidth: calculate width of string containing optional exponent +% expstringwidth +/expstringwidth +{ (^) search + { exch pop stringwidth pop exch stringwidth pop 0.7 mul add } + { stringwidth pop } + ifelse +} def + +% expstringshow: show string containing optional exponent +% expstringshow - +/expstringshow +{ (^) search + { exch pop show 0 0.5 ft rmoveto + gsave currentfont 0.7 scalefont setfont show grestore + } + { show + } + ifelse +} def + +% concatenate two strings: strconcat +/strconcat +{ 2 copy length exch length add string + dup 0 4 index putinterval + dup 3 index length 3 index putinterval + 3 1 roll pop pop +} def + +% lgen: generate one label automatically +% num lgen num string +/lgen { dup 20 string cvs } def + +% loglgen: generate one logarithmic label (with exponent) +% loglgen +/loglgen +{ 20 string cvs exch 20 string cvs + (^) strconcat exch strconcat +} def + + +% printxtick: print one x tick +% xpos printxtick - +/printxtick +{ newpath + yleft trpoint moveto 0 yextra neg rmoveto + 0 xticklength neg rlineto [] 0 setdash stroke +} def + +% printxlabel: print one x label +% (xlabel) xpos printxlabel - +/printxlabel +{ yleft trpoint moveto 0 yextra neg rmoveto + 0 xticklength neg rmoveto 0 0.9 ft neg rmoveto + xlog 1 gt { 0 0.3 ft neg rmoveto } if + dup expstringwidth -2 div 0 rmoveto expstringshow +} def + +% printytick: print one y tick +% ypos printytick - +/printytick +{ newpath + xleft exch trpoint moveto xextra neg 0 rmoveto + yticklength neg 0 rlineto [] 0 setdash stroke +} def + +% printylabel: print one y label +% (ylabel) ypos printylabel - +/printylabel +{ xleft exch trpoint moveto xextra neg 0 rmoveto + yticklength neg 0 rmoveto -0.3 ft -0.3 ft rmoveto + dup expstringwidth neg 0 rmoveto expstringshow +} def + +% printrtick: print one r tick +% ypos printrtick - +/printrtick +{ newpath + xright exch trpoint moveto xextra 0 rmoveto + rticklength 0 rlineto [] 0 setdash stroke +} def + +% printrlabel: print one r label +% (rlabel) ypos printrlabel - +/printrlabel +{ xright exch trpoint moveto xextra 0 rmoveto + rticklength 0 rmoveto 0.3 ft -0.3 ft rmoveto + expstringshow +} def + +% printticks: print ticks and labels +% /tickproc /labelproc [ tickandlabeldata ] min printticks - +/printticks +{ /prev exch def + { dup type dup dup /integertype eq exch /realtype eq or + { pop dup /prev exch def 2 index cvx exec + } + { /stringtype eq + { prev 2 index cvx exec + } + { pop + } ifelse + } ifelse + } forall + pop pop +} def + + +% printxaxistick: print one x axis tick +% xpos printxaxistick - +/printxaxistick +{ newpath + yaxis trpoint moveto 0 xticklength -2 div rmoveto + 0 xticklength rlineto [] 0 setdash stroke +} def + +% printxaxislabel: print one x axis label +% (xlabel) xpos printxaxislabel - +/printxaxislabel +{ yaxis trpoint moveto + 0 xticklength -2 div rmoveto 0 0.9 ft neg rmoveto + xlog 1 gt { 0 0.3 ft neg rmoveto } if + dup expstringwidth -2 div 0 rmoveto expstringshow +} def + +% printyaxistick: print one y axis tick +% ypos printyaxistick - +/printyaxistick +{ newpath + xaxis exch trpoint moveto + yticklength -2 div 0 rmoveto + yticklength 0 rlineto [] 0 setdash stroke +} def + +% printyaxislabel: print one y axis label +% (ylabel) ypos printyaxislabel - +/printyaxislabel +{ xaxis exch trpoint moveto + yticklength -2 div 0 rmoveto -0.3 ft -0.3 ft rmoveto + dup expstringwidth neg 0 rmoveto expstringshow +} def + + +% minmax - +% perform minv := min(minv, val); maxv := max(maxv, val) +% allowing for the possibility of minv, maxv, val being false (undefined) +/minmax +{ dup false eq + { pop } + { minv false eq + { dup /minv exch def /maxv exch def } + { dup minv lt + { /minv exch def } + { dup maxv gt + { /maxv exch def } + { pop } + ifelse + } ifelse + } ifelse + } ifelse +} def + +% ticksundef +% returns true iff the ticks array is undefined (one false entry) +/ticksundef +{ dup length 1 eq + { dup 0 get false eq + } + { false } + ifelse +} def + +% integral +% true if the number has an integral value +/integral { dup round eq } def + +% ticksep ticks xory alldata minval maxval axis base ticksandlimits ticks min max base +% ticksandlimits: sort out value of x or y ticks and limits and log base +/ticksandlimits +{ /base exch def + /minv false def + /maxv false def + + % min and max of user-supplied minval, maxval, and axis + minmax minmax minmax + + % min and max of data points + { 0 get dup dup length 1 sub 3 index exch 2 exch + { get minmax dup + } for pop pop + } forall + pop dup + + % min and max of tick values + { dup type /stringtype eq + { pop } { minmax } ifelse + } forall + + % fix minv and maxv if undefined (false) or equal + minv false eq + { /minv -1 def /maxv 1 def } + { minv maxv eq + { minv 0 lt + { /minv 2 minv mul def /maxv 0 def + } + { minv 0 eq + { /minv -1 def /maxv 1 def + } + { /minv 0 def /maxv 2 maxv mul def + } ifelse + } ifelse + } if + } ifelse + + % invent ticks if undefined + ticksundef + { pop /ticksep exch def + + % if base is reasonable and minv is positive, logarithmic ticks + base 1 gt minv 0 gt and + { + % get integral log of minv and maxv + /logminv base minv plog floor cvi def + /logmaxv base maxv plog ceiling cvi def + + % if minv close to base, make it 1; reset minv and maxv + logminv 1 eq logmaxv 4 ge and { /logminv 0 def } if + /minv base logminv exp def + /maxv base logmaxv exp def + + % ticks := [ base**logminv, ... , base**logmaxv ] + [ logminv 1 logmaxv + { dup base exch exp + exch base exch loglgen + } for + ] + } + { % non-logarithmic ticks + { + % fix tick separation if undefined (0) or too small + /base 0 def + /delta maxv minv sub def + ticksep delta 30 div le + { /ticksep 10 delta log 1 sub ceiling exp def + ticksep delta 2 div ge + { /ticksep ticksep 2 div def } + { ticksep delta 5 div lt + { /ticksep 2 ticksep mul def + } if + } ifelse + } if + + % adjust minv and maxv to be multiples of ticksep + /minv minv ticksep div floor ticksep mul def + /maxv maxv ticksep div ceiling ticksep mul def + /delta maxv minv sub def + + % if minv or maxv near zero, move to zero and redo + minv ticksep eq + { /minv 0 def } + { maxv ticksep neg eq { /maxv 0 def } { exit } ifelse + } ifelse + } loop + + % if minv, maxv, and ticksep are all integral, set "makeint" to true + /makeint minv integral maxv integral ticksep integral and and def + + % ticks := [ minv, minv+ticksep, ... , maxv ] + [ 0 1 delta ticksep div round + { ticksep mul minv add makeint { cvi } if lgen } + for + ] + } ifelse + } + { exch pop + } ifelse + minv maxv base +} def + +% xset: set up all data for x axis, including limits and ticks +% xticksep xticks 0 alldata xmin xmax xlog xextra xdecr xaxis xticklength xset - +/xset +{ /xticklength exch def + /xaxis exch def + /xdecr exch def + /xextra exch def + xaxis exch ticksandlimits + /xlog exch def /xmax exch def /xmin exch def /xticks exch def + /xleft xdecr { xmax } { xmin } ifelse def + /xright xdecr { xmin } { xmax } ifelse def + /xwidth xsize xextra 2 mul sub def + /trxmin xmin xtr def /trxmax xmax xtr def +} def + +% yset: set up all data for y axis, including limits and yticks +% yticksep yticks 0 alldata ymin ymax ylog yextra ydecr yaxis yticklength yset - +/yset +{ /yticklength exch def + /yaxis exch def + /ydecr exch def + /yextra exch def + yaxis exch ticksandlimits + /ylog exch def /ymax exch def /ymin exch def /yticks exch def + /yleft ydecr { ymax } { ymin } ifelse def + /yright ydecr { ymin } { ymax } ifelse def + /ywidth ysize yextra 2 mul sub def + /trymin ymin ytr def /trymax ymax ytr def +} def + +% rset: set up all data for y axis (again), but including limits and rticks +% rticksep rticks 0 alldata ymin ymax ylog yextra ydecr yaxis rticklength rset - +/rset +{ /rticklength exch def + /yaxis exch def + /ydecr exch def + /yextra exch def + yaxis exch ticksandlimits + /ylog exch def /ymax exch def /ymin exch def /rticks exch def + /yleft ydecr { ymax } { ymin } ifelse def + /yright ydecr { ymin } { ymax } ifelse def + /ywidth ysize yextra 2 mul sub def + /trymin ymin ytr def /trymax ymax ytr def +} def + +% norset: set up data for no rticks +% - norset - +/norset +{ /rticklength 0 def + /rticks [] def +} def + +% framestyle: print a frame around the graph +/framestyle +{ 0 0 moveto xsize 0 lineto xsize ysize lineto + 0 ysize lineto closepath stroke + /printxtick /printxlabel xticks xleft printticks + /printytick /printylabel yticks ymin printticks + /printrtick /printrlabel rticks ymin printticks +} def + +% nonestyle: print nothing around the graph +/nonestyle +{ +} def + +% axesstyle: print axes for the graph (unless axis values missing) +/axesstyle +{ + xaxis false eq yaxis false eq or + { framestyle } + { xaxis yaxis trpoint dup 0 exch moveto xsize exch lineto + dup 0 moveto ysize lineto stroke + /printxaxistick /printxaxislabel xticks xleft printticks + /printyaxistick /printyaxislabel yticks ymin printticks + } ifelse +} def + +% rundata: run all data sets +/rundata +{ alldata + { gsave + dup dup dup dup + 4 get /dopaint exch def + 3 get /initrun exch def + 2 get /pairs exch def + 1 get /points exch def + 0 get /data exch def + dopaint + { data length 4 ge + { initrun + newpath + data 0 get ymin trpoint yextra sub moveto + 0 2 data length 2 sub + { dup 1 add + data exch get /ycurr exch def + data exch get /xcurr exch def + xcurr ycurr trpoint lineto + } for + data dup length 2 sub get ymin trpoint yextra sub lineto + closepath fill + } if + } if + initrun + data length 2 ge + { + /xcurr data 0 get def + /ycurr data 1 get def + points + data length 4 ge + { 2 2 data length 2 sub + { /xprev xcurr def + /yprev ycurr def + dup dup 2 eq /firstpair exch def + data length 2 sub eq /lastpair exch def + dup 1 add + data exch get /ycurr exch def + data exch get /xcurr exch def + pairs + points + } for + } if + } if + grestore + } forall +} def + +end +%%EndResource + +%%BeginResource: procset LoutBasicSetup +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/bsf.lpg + +% width height linethickness louteuro - +% draw a Euro symbol of this width and height with this line thickness +/louteuro { + 20 dict begin + /eurothick exch def + /euroheight exch def + /eurowidth exch def + /eurostrokewidth euroheight 0.8 mul def + /eurostep eurothick 60 cos mul 60 sin div def + /eurotheta 40 def + + % llx lly width thickness louteurobox - + % draw angled box starting at (llx, lly) with given width and thickness + /louteurobox + { + /euroboxthick exch def + /euroboxwidth exch def + newpath moveto euroboxwidth 0 rlineto + eurostep euroboxthick rlineto + euroboxwidth neg 0 rlineto closepath fill + } def + + % lower cross stroke + 0 euroheight 2 div eurothick 1.5 mul sub + eurostrokewidth eurothick louteurobox + + % upper cross stroke + 0 euroheight 2 div eurothick 0.5 mul add + eurostrokewidth eurostep 2 mul add eurothick louteurobox + + % circular part + /eurohctr eurowidth euroheight 2 div eurotheta cos mul sub def + /eurovctr euroheight 2 div def + newpath + eurohctr eurovctr eurovctr eurotheta 350 eurotheta sub arc + eurohctr eurovctr eurovctr eurothick sub 365 eurotheta sub eurotheta arcn + closepath fill + end +} def + +% path for @FullWidthRule symbol +/LoutRule +{ 0 0 moveto xsize 0 lineto +} def + +% path for @Box symbol +/LoutBox +{ 0 0 moveto xsize 0 lineto + xsize ysize lineto 0 ysize lineto + closepath +} def + +% path for @CurveBox symbol +/LoutCurveBox +{ xmark 0 moveto + xsize xmark sub xmark xmark 270 360 arc + xsize xmark sub ysize xmark sub xmark 0 90 arc + xmark ysize xmark sub xmark 90 180 arc + xmark xmark xmark 180 270 arc + closepath +} def + +% path for @ShadowBox symbol +/LoutShadowBox +{ xmark 2 mul 0 moveto xsize 0 lineto + xsize ysize xmark 2 mul sub lineto + xsize xmark sub ysize xmark 2 mul sub lineto + xsize xmark sub xmark lineto + xmark 2 mul xmark lineto + closepath +} def + +% set up dictionary containing margin note data: parity LoutMargSet - +/LoutMargSet +{ /LoutMargDict 12 dict def + LoutMargDict begin + /parity exch def + /matr matrix currentmatrix def + /rightx xsize def + /lefty ysize def % highest allowable point for top of next left note + /righty ysize def % highest allowable point for top of next right note + /max { 2 copy gt { pop } { exch pop } ifelse } def + /min { 2 copy lt { pop } { exch pop } ifelse } def + end +} def + +%translate coordinate system for marginal notes: type LoutMargShift - +% where type 0 is left margin, 1 is right margin, 2 is outer, 3 is inner +/LoutMargShift +{ LoutMargDict begin + + % y coordinate of top of note, in margin coords, before vertical adjust + 0 ysize transform matr itransform exch pop + + % decide whether left or right margin based on type and parity + exch [ 0 1 parity 1 parity sub ] exch get 0 eq + { + % left margin: adjust top of note downwards if overlaps previous note + lefty min + + % bottom of note is new lefty position and also translate position + ysize sub dup /lefty exch def + + % want right edge of note at coordinate zero + xsize neg exch + } + { + % right margin: adjust top of note downwards if overlaps previous note + righty min + + % bottom of note is new righty position and also translate position + ysize sub dup /righty exch def + + % want left edge of note at coordinate rightx + rightx exch + } ifelse + + % stack now contains coord of bottom left corner in margin coordinates + matr setmatrix translate + end +} def + +% create LoutPageDict with left, right, foot, top for @Place symbol users +/LoutPageSet +{ + /LoutPageDict 5 dict def + LoutPageDict begin + /matr matrix currentmatrix def + /left 0 def + /right xsize def + /foot 0 def + /top ysize def + end + +} def + +%%EndResource + +%%EndProlog + +%%BeginSetup +%%IncludeResource: font Times-Roman +/Times-Romanfnt82 vec2 /Times-Roman LoutRecode +/fnt82 { /Times-Romanfnt82 LoutFont } def +%%IncludeResource: font 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+ +pgsave restore +showpage + +%%Page: 42 42 +%%BeginPageSetup +%%PageResources: font Times-Roman +%%+ font Times-Italic +/pgsave save def +%%IncludeResource: font Times-Italic +/Times-Italicfnt83 vec2 /Times-Italic LoutRecode +/fnt83 { /Times-Italicfnt83 LoutFont } def +0.0500 dup scale 10 setlinewidth +%%EndPageSetup +gsave +0 0 translate +400 fnt82 0.0 0.0 0.0 setrgbcolor 11900 16840 0 16840 400 480 100 LoutGraphic +gsave +LoutPageSet +grestore +gsave +0 16840 translate +0.0000 rotate +9066 12588 0 12588 400 480 100 1417 -14005 LoutGr2 +0 LoutMargSet +grestore +160 fnt82 0 12479(lout)m 8910(42)s gsave +0 668 translate +400 fnt82 8640 10080 1440 8640 400 480 100 LoutGraphic +gsave +LoutBox stroke +grestore +gsave +1440 4671 translate +360 fnt82 5670 3969 0 3969 360 480 90 LoutGraphic +gsave +grestore + +gsave xsize ysize lgraphdict begin /ysize exch def /xsize exch def +/alldata [ [ [ 10 1.97 50 2.01 100 2.00 200 2.0 500 2.00 ] xandy +{ filledcircle } +{ } +{ /dashlength 0.2 ft def + /linewidth currentlinewidth def + /symbolsize 0.15 ft def } +{ false } +] +[ [ 10 3.53 50 7.45 100 9.32 200 13.41 500 21.63 ] xandy +{ filledcircle } +{ } +{ /dashlength 0.2 ft def + /linewidth currentlinewidth def + /symbolsize 0.15 ft def } +{ false } +] +[ [ 10 2 500 2 ] xandy +{ } +{ linesetup cdashed } +{ /dashlength 0.2 ft def + /linewidth currentlinewidth def + /symbolsize 0.15 ft def } +{ false } +] +[ [ 10 20 500 { /xval exch def xval 3.14159 xval mul 4 div sqrt 1 add } for ] xandy +{ } +{ linesetup cdashed } +{ /dashlength 0.2 ft def + /linewidth currentlinewidth def + /symbolsize 0.15 ft def } +{ false } +] ] def +0 [ 10 lgen 50 lgen 100 lgen 200 lgen 500 lgen ] 0 alldata false false 0 +0 false 0 0.5 ft xset +0 [ false ] 1 alldata false false 0 +0 false 0 0.5 ft yset +norset +rundata axesstyle +grestore +1953 535 0 535 360 480 90 0 -535 LoutGr2 +300 2 trpoint translate 0 ysize translate gsave +grestore +360 fnt83 108 182(Exponential)m +grestore +grestore +1428 533 0 533 360 480 90 0 -533 LoutGr2 +300 3.14159 300 4 div mul sqrt 1 add trpoint translate 0 0 translate gsave +grestore +360 fnt83 108 182(Uniform)m grestore +grestore +end + +grestore +360 fnt83 4189 3901(n)m +grestore + +grestore + +grestore + +grestore + +pgsave restore +showpage + +%%Trailer +%%DocumentNeededResources: font Helvetica +%%+ font Helvetica-Oblique +%%+ font Symbol +%%+ font Times-Roman +%%+ font Times-Italic +%%+ font Times-Bold +%%DocumentSuppliedResources: procset LoutStartUp +%%+ procset LoutTabPrependGraphic +%%+ procset LoutFigPrependGraphic +%%+ procset LoutGraphPrependGraphic +%%+ procset LoutBasicSetup +%%+ encoding vec2 +%%Pages: 42 +%%EOF diff --git a/doc/user/README b/doc/user/README index 0fc5704..0cf3731 100644 --- a/doc/user/README +++ b/doc/user/README @@ -34,4 +34,4 @@ A copy of the final PostScript output file (A4 paper size) is stored at "ftp://ftp.cs.su.oz.au/jeff/lout/lout-3.19.user.ps.gz". Jeffrey H. Kingston -9 March 2000 +8 April 2000 diff --git a/doc/user/all b/doc/user/all index a4bb049..64eaf96 100644 --- a/doc/user/all +++ b/doc/user/all @@ -7,6 +7,7 @@ @SysInclude { diag } @SysInclude { cprint } @SysInclude { eiffel } +@SysInclude { perl } @SysInclude { book } # @Include { letterbook } # for testing Letter size formatting @@ -20,8 +21,8 @@ Lout Document Formatting System } @Author { Jeffrey H. Kingston } - @Edition { Version 3.19 -March, 2000 } + @Edition { Version 3.20 +April, 2000 } @Publisher { Copyright @CopyRight 1991, 2000 Jeffrey H. Kingston, Basser Department of Computer Science, @@ -42,7 +43,7 @@ The University of Sydney 2006, Australia. ISBN 0 86758 951 5. @Include { bgr } @Include { dia } @Include { gra } -@Include { cpp } +@Include { prg } @Include { pascal } @Include { ap_qck } @Include { ap_byp } diff --git a/doc/user/cpp b/doc/user/cpp deleted file mode 100644 index 0e7748a..0000000 --- a/doc/user/cpp +++ /dev/null @@ -1,86 +0,0 @@ -@Chapter - @Title { Computer Programs } - @Tag { cprint } -@Begin -@LP -This chapter describes how to typeset computer program text using Lout -in conjunction with the @Code prg2lout -prg2lout. @Index { @Code prg2lout filter program } -@FootNote { -Prior to Version 3.18 of Lout, this chapter described how to typeset -programs written in the C programming language using the -@Code c2lout filter, and Eiffel programs using the @Code eif2lout -filter. These have now been withdrawn and replaced by {@Code prg2lout}, -which handles multiple languages. Ordinary Lout documents require no -modifications as a result of this change. -} -filter program, which is always installed wherever Lout is. -@PP -It is possible to simply print out one or more program files independently -of any document. Alternatively, the program text may be printed as part of -a larger Lout document. Either way, Lout does not lay out the programs in -the sense of choosing line breaks and indenting; it uses whatever line -breaks and indenting you give to the program. What Lout does do is cope -with characters in the program text that it would ordinarily either reject -or interpret in some way (braces and so on), ensuring that you can include -program texts with absolutely no modifications; plus, if you wish, Lout -will print keywords in bold, identifiers in italics, etc. -@PP -At the time of writing, the available programming languages are: -eiffel. @Index { Eiffel program printing } -c. @Index { C and C++ program printing } -blue. @Index { Blue program printing } -@CD @Tbl - mv { 0.5vx } - af { Italic } - arb { yes } - aformat { @Cell A | @Cell B | @Cell C | @Cell D | @Cell E } - bformat { @Cell A | @Cell @Code B | @Cell @Code C | @Cell @Code D | @Cell E } -{ -@Rowa - A { Language name } - B { Setup file name } - C { Lout symbol } - D { Default style } - E { ` ' escapes } -@Rowb - A { C, C++ } - B { cprint } - C { "@CP" } - D { fixed } - E { No } -@Rowb - A { Eiffel } - B { eiffel } - C { "@Eiffel" } - D { varying } - E { Yes } -@Rowb - A { Blue } - B { blue } - C { "@Blue" } - D { varying } - E { Yes } -} -C and C++ are handled together since, for formatting purposes, they -differ only in that C++ has some additional keywords plus an extra -way to make comments. Whenever we mention C from now on, we mean -both C and C++. The second to fifth columns of this table will be -explained at various points later in this chapter. -@PP -The list of languages is likely to expand, because the @Code "prg2lout" -program has been designed to make it easy to add new languages. Consult -the instructions at the top of the source file of that program if you -want to try it yourself. -@BeginSections -@Include { cpp_lone } -@Include { cpp_embe } -@Include { cpp_opti } -@Include { cpp_chan } -@Include { cpp_tabs } -@Include { cpp_comm } -@Include { cpp_prog } -@Include { cpp_pipe } -@Include { cpp_erro } -@EndSections -@End @Chapter diff --git a/doc/user/cpp_chan b/doc/user/cpp_chan deleted file mode 100644 index bee0493..0000000 --- a/doc/user/cpp_chan +++ /dev/null @@ -1,91 +0,0 @@ -@Section - @Title { Changing the appearance of all programs simultaneously } - @Tag { cpsetup } -@Begin -@PP -We have just seen that the {@Code "@CP"}, {@Code "@Eiffel"} etc. symbols -have many options for changing the appearance of the program text. However, -most people would not want to have a different style for every program text -in their document; they want to define the style once at the start, and have -all their program texts come out in that style without laboriously setting -options on every symbol. You do this by copying the setup file and -changing it. -@PP -For general information about how to make your own setup file, consult -Section {@NumberOf setup}. The options that determine the default -values are in the @Code "@Use" clause which occupies most of the setup -file. Here is the @Code "@Use" clause from {@Code cprint}: -cprint. @Index @Code "@CPSetup" -@ID @Code @Tbl - mv { 0.5vx } - aformat { @Cell A | @Cell B | @Cell C } - bformat { @Cell { " #" A } | @Cell { "{" B } | @Cell "}" } -{ -@Rowa A { "@Use { @CPSetup" } -@Rowb A { "pipe" } B { } -@Rowb A { "style" } B { fixed } - -@Rowa -@Rowb A { "fixedfont" } B { Courier } -@Rowb A { "fixedstrings" } B { Base } -@Rowb A { "fixedidentifiers" } B { Base } -@Rowb A { "fixedcomments" } B { Base } -@Rowb A { "fixedkeywords" } B { Base } -@Rowb A { "fixednumbers" } B { Base } -@Rowb A { "fixedoperators" } B { Base } -@Rowb A { "fixedsize" } B { -1.0p } -@Rowb A { "fixedline" } B { 1.0vx } -@Rowb A { "fixedtabin" } B { 8 } -@Rowb A { "fixedtabout" } B { 8s } - -@Rowa -@Rowb A { "varyingfont" } B { } -@Rowb A { "varyingstrings" } B { Slope } -@Rowb A { "varyingidentifiers" } B { Slope } -@Rowb A { "varyingcomments" } B { Base } -@Rowb A { "varyingkeywords" } B { Bold } -@Rowb A { "varyingnumbers" } B { Base } -@Rowb A { "varyingoperators" } B { Base } -@Rowb A { "varyingsize" } B { 1.0f } -@Rowb A { "varyingline" } B { 1.0vx } -@Rowb A { "varyingtabin" } B { 8 } -@Rowb A { "varyingtabout" } B { 3f } - -@Rowa -@Rowb A { "symbolfont" } B { } -@Rowb A { "symbolstrings" } B { Slope } -@Rowb A { "symbolidentifiers" } B { Slope } -@Rowb A { "symbolcomments" } B { Base } -@Rowb A { "symbolkeywords" } B { Bold } -@Rowb A { "symbolnumbers" } B { Base } -@Rowb A { "symboloperators" } B { Base } -@Rowb A { "symbolsize" } B { 1.0f } -@Rowb A { "symbolline" } B { 1.0vx } -@Rowb A { "symboltabin" } B { 8 } -@Rowb A { "symboltabout" } B { 3f } - -@Rowa A { "}" } -} -This shows the default font families, font faces, font sizes, line -spacings, and tab settings in force for the three styles, and also that -the default style is {@Code "fixed"}. Notice that the font family name -for @Code "fixed" style is {@Code "Courier"}, but for the other styles is -empty. This causes the @Code "fixed" style to always switch to Courier, -and the other styles to use the same font family as in the surrounding -document. The @Code pipe option will be explained in Section {@NumberOf pipes}. -@PP -To change a default value, delete the preceding @Code "#" and change the -part between braces. For example, suppose you are happy with @Code "fixed" -except that you want bold keywords. Then one line needs to be changed, to -@ID @Code "fixedkeywords { Bold }" -Or suppose you like @Code "varying" as it stands, but would like it to be -the default style rather than {@Code "fixed"}. Again, only one line needs -to be changed, to {@Code "style { varying }"}. -@PP -The setup files for the other languages are identical to this one, except -that the symbol after @Code "@Use" is different, and some of the -default values may be different. Changing an option affects only the -language of that setup file; if you have multiple languages you can -have multiple setup files and change their options quite independently -of each other. -@End @Section diff --git a/doc/user/cpp_comm b/doc/user/cpp_comm deleted file mode 100644 index 96ac110..0000000 --- a/doc/user/cpp_comm +++ /dev/null @@ -1,27 +0,0 @@ -@Section - @Title { Embedding Lout commands within program comments } - @Tag { cpcomm } -@Begin -@PP -It is possible to embed Lout text inside program comments. How this -is done could in principle vary from language to language, but in -every language supported so far it is done by starting off the comment -with an @Code "@" character. If the language has several ways to get -a comment, this will work every way. The entire comment after the @Code "@" -character should then be Lout text. For example, to force Lout to start -a new page at some point within a C program, place -@ID @Code "/*@ @NP */" -at that point. (In this case you can also simply include a formfeed -formfeed. @Index { formfeed in program texts } -character, control-L, without any comment; whatever the language, a formfeed -in program text is taken to be a request to start a new page.) Or, to -make a heading in an Eiffel program, do this: -@ID @Code "--@ @Display @Heading { treeprint() }" -(Eiffel comments begin with @Code "--" and end at the end of the -line.) Other possible uses for this feature include index entries and -margin notes. Incredible as it may seem, you can even write -@ID @Code "/*@ @CD @Heading { Function @CP { treeprint() } } */" -with a @Code "@CP" symbol and some C code inside the Lout code -inside the C code. You probably can't go further, however, at least -not in C, since that would require a C comment inside a C comment. -@End @Section diff --git a/doc/user/cpp_embe b/doc/user/cpp_embe deleted file mode 100644 index 0cefc84..0000000 --- a/doc/user/cpp_embe +++ /dev/null @@ -1,82 +0,0 @@ -@Section - @Title { Typesetting computer programs as part of a larger document } - @Tag { embedded } -@Begin -@PP -When the program texts are to be part of a larger Lout document, -the procedure is somewhat different. You need to include the setup file -appropriate to your language, like this: -@ID @OneRow @Code { -"@SysInclude { cprint }" -"@SysInclude { doc }" -"@Doc @Text @Begin" -"..." -"@End @Text" -} -The @Code cprint setup file includes everything needed to set up for C -program formatting; for the other languages, consult the second column -of the table at the start of this chapter. -@PP -The program texts within the Lout document are enclosed in braces -preceded by the Lout symbol from the third column of the table, like -this for the C language: -@ID @OneRow @Code { -"@IndentedDisplay @CP {" -"#include " -"" -"treeprint(p) /* print tree p recursively */" -"struct tnode *p;" -"{" -" if (p != NULL) {" -" treeprint(p->left);" -" printf(\"%4d %s\\n\", p->count, p->word);" -" treeprint(p->right);" -" }" -"}" -"}" -} -Although computer programs violate the rules of legal Lout input in many ways, -these rules are suspended by the {@Code "@CP"}, {@Code "@Eiffel"} etc. symbols, -allowing the program text to be incorporated with absolutely no -modifications. The result is -@ID @OneRow @CP { -#include - -treeprint(p) /* print tree p recursively */ -struct tnode *p; -{ - if (p != NULL) { - treeprint(p->left); - printf("%4d %s\n", p->count, p->word); - treeprint(p->right); - } -} -} -We have chosen to use the @Code "@IndentedDisplay" symbol from Section -{@NumberOf displays} to obtain an indented display, but in fact -{@Code "@CP"}, {@Code "@Eiffel"} and the rest may appear anywhere at -all: the result is an object in the usual way, which may go -anywhere. When including a program text within a paragraph, use -@Code "@OneCol @CP { ... }" (or @Code "@OneCol @Eiffel { ... }" etc. for -other languages) to prevent it being broken across two lines, if desired. -@PP -In cases where the program text has unbalanced braces, it is necessary to -use the alternative form @Code "@CP @Begin ... @End @CP" (or the -equivalent for other languages), so that Lout does not confuse program -braces with Lout braces. In that case the program text must not -contain {@Code "@End"}; and in either case the program text must not -include @Code "@Include" or @Code "@SysInclude" unless you are really -including a file at that point (which is allowed, and follows the -rules given for @Code "@Verbatim" in Section {@NumberOf verbatim}). -@PP -If your Lout document contains program texts in several languages, -simply add one @Code "@SysInclude" line for each of them and proceed -as before. If your programming language is not currently supported, -a viable alternative is -@ID @Code "@F @Verbatim { ... }" -These symbols cause the text between braces to be set verbatim in -a fixed-width font, as explained elsewhere in this guide. This fallback -method will not handle tab and formfeed characters very well. Again, -use @Code "@Begin" and @Code "@End @Verbatim" instead of braces if -your program text contains unbalanced braces. -@End @Section diff --git a/doc/user/cpp_erro b/doc/user/cpp_erro deleted file mode 100644 index ff89591..0000000 --- a/doc/user/cpp_erro +++ /dev/null @@ -1,39 +0,0 @@ -@Section - @Title { Error messages } - @Tag { cpp_erro } -@Begin -@PP -In order to understand the error messages produced by program -printing, it is necessary to understand that Lout's first step when -given a program text is to pass it to the separate {@Code prg2lout} -program for analysis. This separate program is the source of most -of the error messages associated with program printing. -@PP -The {@Code prg2lout} program is quite happy to format a fragment of a -computer program: there is no need to supply a complete routine, or -a complete statement, or any such thing. However, it will complain if -you supply only a fragment of one lexical unit, such as a comment or -string without its terminating delimiter. It will also complain if -there is a character that cannot be classified as part of an identifier, -number, etc. according to the rules of the language as they have been -given to @Code prg2lout by the implementer. Irrespective of the -language rules, @Code prg2lout always interprets spaces, tabs, newlines, -and formfeed characters in the usual way. -@PP -If an error message is generated by {@Code prg2lout}, it will contain -a line and column number counting from the start of the program text -involved. Lout will precede this error message with a file name, -line number, and column number pointing to the Lout symbol -({@Code "@CP"}, {@Code "@Eiffel"} etc.) whose program text caused the -error message, like this: -@ID @Code @Verbatim { -lout file "cpp_tabs" (from "cpp" line 80, from "all" line 45): - 56,23: prg2lout 2,1: program text ended within comment -} -This is an actual message produced when formatting this chapter. The -program text in question has only one line, containing an incomplete comment, -so when @Code "prg2lout" tried to start the second line and found nothing, -it complained as shown. In general, then, you have to add -{@Code "prg2lout"}'s line number to Lout's line number, and use some -initiative, to find the precise point of the problem. -@End @Section diff --git a/doc/user/cpp_lone b/doc/user/cpp_lone deleted file mode 100644 index a377d86..0000000 --- a/doc/user/cpp_lone +++ /dev/null @@ -1,37 +0,0 @@ -@Section - @Title { Typesetting computer programs independently of any document } - @Tag { alone } -@Begin -@PP -Printing of program files independently of any document is accomplished by -the following Unix pipeline: -@ID @Code "prg2lout -l language options files | lout -s > out.ps" -where @Code language stands for any one of the programming language -names in the first column of the table above. As usual with Lout, the -output will be a PostScript file. Each input file will begin on a new -page of the output, starting with its name in bold type. The options -provide control over the final appearance, as follows: -@WideTaggedList -@TI { {@Code-p}{@I style} } { -Select a printing style. Your choices are {@Code -pfixed}, -{@Code -pvarying}, and {@Code -psymbol}, with the default value -varying with the language as given in the fourth column of the -table above. Consult Section {@NumberOf embedded} for examples -of these styles. -} -@TI { @Code -n } { -Do not print file names. -} -@TI { {@Code -f}{@I font} } { -Select a Lout font family. The default is @Code "-fCourier" for -{@Code -pfixed}, and @Code "-fTimes" for @Code -pvarying and {@Code -psymbol}. -} -@TI { {@Code -v}{@I vsize} } { -Select an inter-line spacing size in Lout units. The default is -@Code -v1.1fx meaning 1.1 times the font size measured from baseline -to baseline. -} -@EndList -There are also {@Code -t} and {@Code -T} options for dealing with tab -characters (Section {@NumberOf tabs}). -@End @Section diff --git a/doc/user/cpp_opti b/doc/user/cpp_opti deleted file mode 100644 index 538bda2..0000000 --- a/doc/user/cpp_opti +++ /dev/null @@ -1,105 +0,0 @@ -@Section - @Title { Changing the appearance of a program } - @Tag { cpp_opti } -@Begin -@PP -The {@Code "@CP"}, {@Code "@Eiffel"} etc. symbols have a number of -options for changing the appearance of the printed program. These -options are the same for all symbols, although their default values -may vary. The @Code "style" option changes the printing style; its -value may be {@Code "fixed"} (fixed-width font), {@Code "varying"} -(varying-width font), or {@Code "symbol"} (varying-width font with -mathematical symbols used for some operators). Its default value -depends on the language, and may be found in the fourth column of -the table at the start of this chapter. The example in the previous -section was in @Code fixed style; we can switch styles like this: -@ID @OneRow @Code { -"@CP" -" style { varying }" -"{" -"#include " -"" -"treeprint(p) /* print tree p recursively */" -"struct tnode *p;" -"{" -" if (p != NULL) {" -" treeprint(p->left);" -" printf(\"%4d %s\\n\", p->count, p->word);" -" treeprint(p->right);" -" }" -"}" -"}" -} -The result in this case will be -@ID @OneRow @CP style { varying } -{ -#include - -treeprint(p) /* print tree p recursively */ -struct tnode *p; -{ - if (p != NULL) { - treeprint(p->left); - printf("%4d %s\n", p->count, p->word); - treeprint(p->right); - } -} -} -If we use @Code "style { symbol }" we get this: -@ID @OneRow @CP style { symbol } -{ -#include - -treeprint(p) /* print tree p recursively */ -struct tnode *p; -{ - if (p != NULL) { - treeprint(p->left); - printf("%4d %s\n", p->count, p->word); - treeprint(p->right); - } -} -} -with mathematical symbols replacing some of the operators. -@PP -The {@Code "@CP"}, {@Code "@Eiffel"} etc. symbols have additional options -which allow a finer control over the style. Here they all are, with their -default values: -@ID @OneRow @Code { -"@CP [ or @Eiffel, @Blue, etc. ]" -" style { fixed }" -" font { Courier }" -" strings { Base }" -" identifiers { Base }" -" comments { Base }" -" keywords { Base }" -" numbers { Base }" -" operators { Base }" -" size { -1.0p }" -" line { 1.0vx }" -" tabin { 8 }" -" tabout { 8s }" -"{" -" ..." -"}" -} -We are already familiar with {@Code "style"}. After that comes -{@Code "font"}, which determines the font family to use, followed -by six options giving the particular faces within that family in which to -print strings, identifiers, comments, keywords, numbers, and -operators. {@Code "Base"} means the basic face; other commonly available -choices are {@Code "Slope"} and {@Code "Bold"}. These options may all be -set to different faces if desired. The default values shown are correct -for @Code "style { fixed }" only; the other styles have other defaults -(Section {@NumberOf cpsetup}). -@PP -The @Code "size" option is the font size to use, and @Code "line" is the -inter-line spacing. The default values specify that @Code "size" is -to be one point smaller than in the surrounding document; this was done -to compensate for Courier's relatively large appearance compared -to other fonts of the same nominal size. Again, these defaults are -different for different values of {@Code "style"}. -@PP -The @Code "tabin" and @Code "tabout" options are the subject of -Section {@NumberOf tabs}. -@End @Section diff --git a/doc/user/cpp_pipe b/doc/user/cpp_pipe deleted file mode 100644 index afbb87e..0000000 --- a/doc/user/cpp_pipe +++ /dev/null @@ -1,57 +0,0 @@ -@Section - @Title { Reading and selecting program text from separate files } - @Tag { pipes } -@Begin -@PP -We have said that program text within @Code "@CP { ... }" and the other -symbols is passed directly to @Code prg2lout for analysis. However, -there is an exception. The program text may contain an -@Code "@Include" or @Code "@SysInclude" command, which, as for the -@Code "@Verbatim" symbol (Section {@NumberOf verbatim}), causes Lout -to take the program text from a file: -@ID @Code { -"@Eiffel" -"{" -" @Include { \"/usr/staff/jeff/Eiffel/hash.e\" }" -"}" -} -The included file is not examined for balanced braces or @Code "@End" or -{@Code "@Include"}; it is treated entirely verbatim and passed straight -on to {@Code prg2lout}. There may be several @Code "@Include" commands, -and any amount of program text as well, within @Code "@CP { ... }" and -the rest. -@PP -When including files in this way it often happens that only part of an -actual program file is wanted for display. Rather than placing the -wanted part in a separate file, which is error-prone and tedious when -the program is changing, Unix users can use the @Code "pipe" option -to pipe the entire file through an arbitrary sequence of Unix commands, -which may be used to make the wanted selection before the program text -is passed to {@Code prg2lout}. -@PP -For example, suppose that all your Eiffel routines begin with the -routine name one tab stop from the left margin and end at the first -following @Eiffel { end } indented two tab stops. Then -@ID @Code { -"@Eiffel" -" pipe { \"sed -n /^.insert/,/^..end/p\" }" -"{" -" @Include { \"/usr/staff/jeff/Eiffel/hash.e\" }" -"}" -} -will select just the @Eiffel { insert } routine from the @Code { hash.e } -file. Assuming that your program text has been laid out in a -disciplined manner, every line of the selection will begin with a -tab character that is not wanted in this display, so an even better -pipe is -@ID @Code { -"@Eiffel" -" pipe { \"sed -n /^.insert/,/^..end/p | cut -c2-\" }" -"{" -" @Include { \"/usr/staff/jeff/Eiffel/hash.e\" }" -"}" -} -since it cuts away the unwanted tab characters. Unfortunately, we -can't show the result of this on an actual example, since that would -prevent this manual from being formatted on a non-Unix system. -@End @Section diff --git a/doc/user/cpp_prog b/doc/user/cpp_prog deleted file mode 100644 index a049e3d..0000000 --- a/doc/user/cpp_prog +++ /dev/null @@ -1,35 +0,0 @@ -@Section - @Title { Embedding program text within program comments } - @Tag { cpp_prog } -@Begin -@PP -The standard reference for the Eiffel language @Cite { $meyer1992eiffel } -specifies that identifiers within comments may or should be enclosed -in ` and ' so that they may be noticed and printed in an italic -font: -@ID lines @Break @F @Verbatim { -@ID @Eiffel { -deposit(amount: REAL) is - -- deposit `amount' dollars -} -} -produces -@ID @Eiffel { -deposit(amount: REAL) is - -- deposit `amount' dollars -} -This has been generalized in Lout: arbitrary text within an -Eiffel comment between ` and ' will be treated as Eiffel text and -printed accordingly. Some other languages may also offer this -feature: see the fifth column of the table at the start of this -chapter. In principle the precise means of getting it could vary -from language to language, but the languages available at the moment -either do not have it at all, or else they use ` and ' like Eiffel. -@PP -On the subject of Eiffel, the Eiffel reference @Cite { $meyer1992eiffel } -has some quite detailed style guidelines, and these have been closely -followed in the implementation of the @Code "@Eiffel" symbol. In -particular, @Code "@Eiffel" prints dots larger than usual when they -denote feature calls, as the example @OneCol @Eiffel { account.deposit(20) } -shows. -@End @Section diff --git a/doc/user/cpp_tabs b/doc/user/cpp_tabs deleted file mode 100644 index 3a04bfa..0000000 --- a/doc/user/cpp_tabs +++ /dev/null @@ -1,66 +0,0 @@ -@Section - @Title { Dealing with tab characters in programs } - @Tag { tabs } -@Begin -@PP -Tab characters provide a convenient way to indent and align parts of -tab.c @Index { tab characters in programs } -computer programs. With care, this alignment can be preserved in the final -print even with varying-width fonts. -@PP -The distance between two tab stops in the program text is by default taken -to be 8 characters, which is standard for Unix. This can be changed with -the @Code "tabin" option. For example, -@ID @Code "@CP tabin { 4 }" -informs Lout that tab stops occur every 4 characters in the program -text. All the symbols ({@Code "@CP"}, {@Code "@Eiffel"}, etc.) and -their setup files have this option and the next; but to save repetition -we will stick with C for the rest of this section. -@PP -The distance between two tab stops on the printed page is quite a different -thing, and it is determined by the value of the @Code "tabout" option, which -must be a Lout length. For example, -@ID @Code "@CP tabout { 0.5i }" -requests that tab stops be placed at half-inch intervals. In other -words, a distance of one tab stop in the program text will be equivalent to a -distance of half an inch on the printed page. For example, -@ID @Code "@CP style { varying } tabout { 3f }" -might produce the following, where tab characters in the program text -have been used for indenting and also to align the comments: -@ID @OneRow @CP style { varying } tabout { 3f } { -struct tnode { /* the basic node */ - char *word; /* points to the text */ - int count; /* number of occurrences */ - struct tnode *left; /* left child */ - struct tnode *right; /* right child */ -}; -} -The value {@Code "3f"} means three times the current font size, and -it is the default value of @Code "tabout" for the @Code { varying } -and @Code { symbol } styles (Section {@NumberOf cpsetup}). In a -12 point font this is 36 points, or half an inch. -@PP -If @Code "tabout" is too small, there is a danger that the -alignment might fail. For example, -@ID @Code "@CP style { varying } tabout { 0.2i }" -produces -@ID @OneRow @CP style { varying } tabout { 0.2i } { -struct tnode { /* the basic node */ - char *word; /* points to the text */ - int count; /* number of occurrences */ - struct tnode *left; /* left child */ - struct tnode *right; /* right child */ -}; -} -given the same C text as the previous example. The problem here is that -we are asking for @CP { /* } to appear four tab stops or 0.8 inches -from the left edge, and yet the material to its left on the line is -wider than this. This causes @CP { /* } to be shifted further to the -right than expected, and the alignment is lost. The only solution is -to increase {@Code "tabout"}. -@PP -When typesetting computer program texts independently of any document, -there are @Code "-t" and @Code "-T" options to the @Code "prg2lout" -program equivalent to @Code "tabin" and @Code "tabout" respectively. For -example, @Code "-T0.5i" produces a half-inch tab width. -@End @Section diff --git a/doc/user/preface b/doc/user/preface index 3634a89..2f258eb 100644 --- a/doc/user/preface +++ b/doc/user/preface @@ -18,7 +18,7 @@ gnu. @Index { GNU Public License } primary source is directory @ID @Code "ftp://ftp.cs.usyd.edu.au/jeff/lout" in which may be found a gzipped tar file containing the main distribution -(currently {@Code "lout-3.19.tar.gz"}), and various other things including +(currently {@Code "lout-3.20.tar.gz"}), and various other things including a PostScript version of this guide. The distribution contains source code, libraries, documentation, license, and installation instructions. @PP diff --git a/doc/user/prg b/doc/user/prg new file mode 100644 index 0000000..ec473aa --- /dev/null +++ b/doc/user/prg @@ -0,0 +1,103 @@ +@Chapter + @Title { Computer Programs } + @Tag { cprint } +@Begin +@LP +This chapter describes how to typeset computer program text using Lout +in conjunction with the @Code prg2lout +prg2lout. @Index { @Code prg2lout filter program } +@FootNote { +Prior to Version 3.18 of Lout, this chapter described how to typeset +programs written in the C programming language using the +@Code c2lout filter, and Eiffel programs using the @Code eif2lout +filter. These have now been withdrawn and replaced by {@Code prg2lout}, +which handles multiple languages. Ordinary Lout documents require no +modifications as a result of this change. +} +filter program, which is always installed wherever Lout is. +@PP +It is possible to simply print out one or more program files independently +of any document. Alternatively, the program text may be printed as part of +a larger Lout document. Either way, Lout does not lay out the programs in +the sense of choosing line breaks and indenting; it uses whatever line +breaks and indenting you give to the program. What Lout does do is cope +with characters in the program text that it would ordinarily either reject +or interpret in some way (braces and so on), ensuring that you can include +program texts with absolutely no modifications; plus, if you wish, Lout +will print keywords in bold, identifiers in italics, etc. +@PP +At the time of writing, the available programming languages are: +eiffel. @Index { Eiffel program printing } +c. @Index { C and C++ program printing } +blue. @Index { Blue program printing } +perl. @Index { Perl program printing } +pod. @Index { Pod (for Perl) printing } +@CD @Tbl + mv { 0.5vx } + af { Italic } + arb { yes } + aformat { @Cell A | @Cell B | @Cell C | @Cell D | @Cell E } + bformat { @Cell A | @Cell @Code B | @Cell @Code C | @Cell @Code D | @Cell E } +{ +@Rowa + A { Language name } + B { Setup file name } + C { Lout symbol } + D { Default style } + E { ` ' escapes } +@Rowb + A { C, C++ } + B { cprint } + C { "@CP" } + D { fixed } + E { No } +@Rowb + A { Eiffel } + B { eiffel } + C { "@Eiffel" } + D { varying } + E { Yes } +@Rowb + A { Blue } + B { blue } + C { "@Blue" } + D { varying } + E { Yes } +@Rowb + A { Perl } + B { perl } + C { "@Perl" } + D { fixed } + E { No } +@Rowb + A { Pod } + B { pod } + C { "@Pod" } + D { varying } + E { No } +} +C and C++ are handled together since, for formatting purposes, they +differ only in that C++ has some additional keywords plus an extra +way to make comments. Whenever we mention C from now on, we mean +both C and C++. See Section {@NumberOf prg_perl} for more on Perl +and its handmaiden Pod. The second to fifth columns of this table will be +explained at various points later in this chapter. +@PP +The list of languages is likely to expand, because the @Code "prg2lout" +program has been designed to make it relatively easy to add new languages +(you don't have to write executable code, just declare a lot of records +describing your language). Consult the instructions at the top of the +source file of that program ({@I prg2lout.c}) if you want to try it yourself. +@BeginSections +@Include { prg_lone } +@Include { prg_embe } +@Include { prg_opti } +@Include { prg_chan } +@Include { prg_tabs } +@Include { prg_comm } +@Include { prg_prog } +@Include { prg_pipe } +@Include { prg_erro } +@Include { prg_perl } +@EndSections +@End @Chapter diff --git a/doc/user/prg_chan b/doc/user/prg_chan new file mode 100644 index 0000000..6273b7d --- /dev/null +++ b/doc/user/prg_chan @@ -0,0 +1,108 @@ +@Section + @Title { Changing the appearance of all programs simultaneously } + @Tag { cpsetup } +@Begin +@PP +We have just seen that the {@Code "@CP"}, {@Code "@Eiffel"} etc. symbols +have many options for changing the appearance of the program text. However, +most people would not want to have a different style for every program text +in their document; they want to define the style once at the start, and have +all their program texts come out in that style without laboriously setting +options on every symbol. You do this by copying the setup file and +changing it. +@PP +For general information about how to make your own setup file, consult +Section {@NumberOf setup}. The options that determine the default +values are in the @Code "@Use" clause which occupies most of the setup +file. Here is part of the @Code "@Use" clause from {@Code cprint}: +cprint. @Index @Code "@CPSetup" +@ID @Code @Tbl + mv { 0.5vx } + aformat { @Cell A | @Cell B | @Cell C } + bformat { @Cell { " #" A } | @Cell { "{" B } | @Cell "}" } +{ +@Rowa A { "@Use { @CPSetup" } +@Rowb A { "pipe" } B { } +@Rowb A { "style" } B { fixed } + +@Rowa +@Rowb A { "fixedfont" } B { Courier } +@Rowb A { "fixedsize" } B { -1.0p } +@Rowb A { "fixedline" } B { 1.0vx } +@Rowb A { "fixedtabin" } B { 8 } +@Rowb A { "fixedtabout" } B { 8s } + +@Rowa +@Rowb A { "fixedidentifiers" } B { Base } +@Rowb A { "fixedkeywords" } B { Base } +@Rowb A { "fixedoperators" } B { Base } +@Rowb A { "fixednumbers" } B { Base } +@Rowb A { "fixedstrings" } B { Base } +@Rowb A { "fixedcomments" } B { Base } + +@Rowa +@Rowb A { "fixedidentifiersformat" } B { "@Body" } +@Rowb A { "fixedkeywordsformat" } B { "@Body" } +@Rowb A { "fixedoperatorsformat" } B { "@Body" } +@Rowb A { "fixednumbersformat" } B { "@Body" } +@Rowb A { "fixedstringsformat" } B { "@Body" } +@Rowb A { "fixedcommentsformat" } B { "@Body" } + +@Rowa +@Rowa A { "..." } + +@Rowa +@Rowa A { "}" } +} +The @Code pipe option will be explained in Section {@NumberOf pipes}. The +options whose name begins with @Code "fixed" apply only when +@Code style is {@Code fixed}; there are corresponding options, not +shown, which apply when @Code style is {@Code varying} and {@Code symbol}. +@PP +We can see in this extract that the default value of @Code style is +{@Code fixed}. We can also see the default font family, font face, font size, +line spacing, and tab settings when the style is {@Code "fixed"}. The +font family name for @Code "fixed" style is {@Code "Courier"}, but for the +other styles (not shown) it is empty. This causes the @Code "fixed" style +to always switch to Courier, and the other styles to use the same font +family as in the surrounding document. +@PP +The @Code fixedidentifiersformat option allows you to make a more +radical change to the format of identifiers than just the font. Within +this option, @Code "@Body" stands for the identifier being formatted, and +by applying Lout symbols to it, you apply them to every identifier. For +example, +@ID @Code "fixedidentifiersformat { red @Colour @Body }" +will cause identifiers to be printed red. +@FootNote { +@Code "@Colour" is not a Lout primitive like, say, {@Code "@Font"}; it is +defined when you write @Code "@SysInclude { doc }" or the equivalent for +the other document types. This is true of quite a few generally useful +symbols, including {@Code "@Box"} and {@Code "@I"}. If you want to use +these symbols here, you must include your setup file @I after +@Code "@SysInclude { doc }" or whatever, the reverse of the usual +arrangement, so that they are defined before Lout reads your setup +file. This reversal is carried out automatically when formatting +programs independently of any document, so you can use these symbols +in a setup file given by a @Code { -S } command line flag. +} If you do use exotic formats, remember that in some programming languages, +comments and even strings may occupy more than one line: {@Code "@Box"}, +for example, will give a logical but probably unwanted result when +formatting a multi-line string. +@PP +As always with setup files, to change a default value, delete the preceding +@Code "#" and change the part between braces. For example, suppose you are +happy with @Code "fixed" except that you want bold keywords. Then one line +needs to be changed, to +@ID @Code "fixedkeywords { Bold }" +Or suppose you like @Code "varying" as it stands, but would like it to be +the default style rather than {@Code "fixed"}. Again, only one line needs +to be changed, to {@Code "style { varying }"}. +@PP +The setup files for the other languages are identical to this one, except +that the symbol after @Code "@Use" is different, and some of the +default values may be different. Changing an option affects only the +language of that setup file; if you have multiple languages you can +have multiple setup files and change their options quite independently +of each other. +@End @Section diff --git a/doc/user/prg_comm b/doc/user/prg_comm new file mode 100644 index 0000000..a679f4f --- /dev/null +++ b/doc/user/prg_comm @@ -0,0 +1,27 @@ +@Section + @Title { Embedding Lout commands within program comments } + @Tag { cpcomm } +@Begin +@PP +It is possible to embed Lout text inside program comments. How this +is done could in principle vary from language to language, but in +every language supported so far it is done by starting off the comment +with an @Code "@" character. If the language has several ways to get +a comment, this will work every way. The entire comment after the @Code "@" +character should then be Lout text. For example, to force Lout to start +a new page at some point within a C program, place +@ID @Code "/*@ @NP */" +at that point. (In this case you can also simply include a formfeed +formfeed. @Index { formfeed in program texts } +character, control-L, without any comment; whatever the language, a formfeed +in program text is taken to be a request to start a new page.) Or, to +make a heading in an Eiffel program, do this: +@ID @Code "--@ @Display @Heading { treeprint }" +(Eiffel comments begin with @Code "--" and end at the end of the +line.) Other possible uses for this feature include index entries and +margin notes. Incredible as it may seem, you can even write +@ID @Code "/*@ @CD @Heading { Function @CP { treeprint() } } */" +with a @Code "@CP" symbol and some C code inside the Lout code +inside the C code. You probably can't go further, however, at least +not in C, since that would require a C comment inside a C comment. +@End @Section diff --git a/doc/user/prg_embe b/doc/user/prg_embe new file mode 100644 index 0000000..cfa84d4 --- /dev/null +++ b/doc/user/prg_embe @@ -0,0 +1,81 @@ +@Section + @Title { Typesetting computer programs as part of a larger document } + @Tag { embedded } +@Begin +@PP +When the program texts are to be part of a larger Lout document, +the procedure is somewhat different. You need to include the setup file +appropriate to your language, like this: +@ID @OneRow @Code { +"@SysInclude { cprint }" +"@SysInclude { doc }" +"@Doc @Text @Begin" +"..." +"@End @Text" +} +The @Code cprint setup file includes everything needed to set up for C +program formatting; for the other languages, consult the second column +of the table at the start of this chapter. +@PP +The program texts within the Lout document are enclosed in braces +preceded by the Lout symbol from the third column of the table, like +this for the C language: +@ID @OneRow @Code { +"@IndentedDisplay @CP {" +"#include " +"" +"treeprint(p) /* print tree p recursively */" +"struct tnode *p;" +"{" +" if (p != NULL) {" +" treeprint(p->left);" +" printf(\"%4d %s\\n\", p->count, p->word);" +" treeprint(p->right);" +" }" +"}" +"}" +} +Although computer programs violate the rules of legal Lout input in many ways, +these rules are suspended by the {@Code "@CP"}, {@Code "@Eiffel"} etc. symbols, +allowing the program text to be incorporated with absolutely no +modifications. The result is +@ID @OneRow @CP { +#include + +treeprint(p) /* print tree p recursively */ +struct tnode *p; +{ + if (p != NULL) { + treeprint(p->left); + printf("%4d %s\n", p->count, p->word); + treeprint(p->right); + } +} +} +We have chosen to use the @Code "@IndentedDisplay" symbol from Section +{@NumberOf displays} to obtain an indented display, but in fact +{@Code "@CP"}, {@Code "@Eiffel"} and the rest may appear anywhere at +all: the result is an object in the usual way, which may go +anywhere. When including a program text within a paragraph, use +@Code "@OneCol @CP { ... }" (or @Code "@OneCol @Eiffel { ... }" etc. for +other languages) to prevent it being broken across two lines, if desired. +@PP +In cases where the program text has unbalanced braces, it is necessary to +use the alternative form @Code "@CP @Begin ... @End @CP" (or the +equivalent for other languages), so that Lout does not confuse program +braces with Lout braces. In that case the program text must not +contain {@Code "@End"}; and in either case the program text must not +include @Code "@Include" or @Code "@SysInclude" unless you are really +including a file at that point (Section {@NumberOf pipes}). +@PP +If your Lout document contains program texts in several languages, +simply add one @Code "@SysInclude" line for each of them and proceed +as before. If your programming language is not currently supported, +a viable alternative is +@ID @Code "@F @Verbatim { ... }" +These symbols cause the text between braces to be set verbatim in +a fixed-width font, as explained elsewhere in this guide. This fallback +method will not handle tab and formfeed characters very well. Again, +use @Code "@Verbatim @Begin ... @End @Verbatim" if your program text +contains unbalanced braces. +@End @Section diff --git a/doc/user/prg_erro b/doc/user/prg_erro new file mode 100644 index 0000000..7ebbe3e --- /dev/null +++ b/doc/user/prg_erro @@ -0,0 +1,39 @@ +@Section + @Title { Error messages } + @Tag { cpp_erro } +@Begin +@PP +In order to understand the error messages produced by program +printing, it is necessary to understand that Lout's first step when +given a program text is to pass it to the separate {@Code prg2lout} +program for analysis. This separate program is the source of most +of the error messages associated with program printing. +@PP +The {@Code prg2lout} program is quite happy to format a fragment of a +computer program: there is no need to supply a complete routine, or +a complete statement, or any such thing. However, it will complain if +you supply only a fragment of one lexical unit, such as a comment or +string without its terminating delimiter. It will also complain if +there is a character that cannot be classified as part of an identifier, +number, etc. according to the rules of the language as they have been +given to @Code prg2lout by the implementer. Irrespective of the +language rules, @Code prg2lout always interprets spaces, tabs, newlines, +and formfeed characters in the usual way. +@PP +If an error message is generated by {@Code prg2lout}, it will contain +a line and column number counting from the start of the program text +involved. Lout will precede this error message with a file name, +line number, and column number pointing to the Lout symbol +({@Code "@CP"}, {@Code "@Eiffel"} etc.) whose program text caused the +error message, like this: +@ID @Code @Verbatim { +lout file "prg_tabs" (from "prg" line 96, from "all" line 46): + 56,23: prg2lout 2,1: program text ended within comment +} +This is an actual message produced when formatting this chapter. The +program text in question has only one line, containing an incomplete comment, +so when @Code "prg2lout" tried to start the second line and found nothing, +it complained as shown. In general, then, you have to add +{@Code "prg2lout"}'s line number to Lout's line number, and use some +initiative, to find the precise point of the problem. +@End @Section diff --git a/doc/user/prg_lone b/doc/user/prg_lone new file mode 100644 index 0000000..1717998 --- /dev/null +++ b/doc/user/prg_lone @@ -0,0 +1,42 @@ +@Section + @Title { Typesetting computer programs independently of any document } + @Tag { alone } +@Begin +@PP +Printing of program files independently of any document is accomplished by +the following Unix pipeline: +@ID @Code "prg2lout -l language options files | lout -s > out.ps" +where @Code language stands for any one of the programming language +names in the first column of the table above. As usual with Lout, the +output will be a PostScript file. Each input file will begin on a new +page of the output, starting with its name in bold type. The options +provide control over the final appearance, as follows: +@WideTaggedList +@TI { {@Code-p}{@I style} } { +Select a printing style. Your choices are {@Code -pfixed}, +{@Code -pvarying}, and {@Code -psymbol}, with the default value +varying with the language as given in the fourth column of the +table above. Consult Section {@NumberOf embedded} for examples +of these styles. +} +@TI { @Code -n } { +Do not print file names. +} +@TI { {@Code -f}{@I font} } { +Select a Lout font family. The default is @Code "-fCourier" for +{@Code -pfixed}, and @Code "-fTimes" for @Code -pvarying and {@Code -psymbol}. +} +@TI { {@Code -v}{@I vsize} } { +Select an inter-line spacing size in Lout units. The default is +@Code -v1.1fx meaning 1.1 times the font size measured from baseline +to baseline. +} +@TI { {@Code -S}{@I file} } { +Use @I file as the setup file for printing your language. This allows +you to change all the options mentioned in subsequent sections, rather +than just the few given here. +} +@EndList +There are also {@Code -t} and {@Code -T} options for dealing with tab +characters (Section {@NumberOf tabs}). +@End @Section diff --git a/doc/user/prg_opti b/doc/user/prg_opti new file mode 100644 index 0000000..9eb1818 --- /dev/null +++ b/doc/user/prg_opti @@ -0,0 +1,101 @@ +@Section + @Title { Changing the appearance of a program } + @Tag { prg_opti } +@Begin +@PP +The {@Code "@CP"}, {@Code "@Eiffel"} etc. symbols have a number of +options for changing the appearance of the printed program. These +options are the same for all symbols, although their default values +may vary. The @Code "style" option changes the printing style; its +value may be {@Code "fixed"} (fixed-width font), {@Code "varying"} +(varying-width font), or {@Code "symbol"} (varying-width font with +mathematical symbols used for some operators). Its default value +depends on the language, and may be found in the fourth column of +the table at the start of this chapter. The example in the previous +section was in @Code fixed style; we can switch styles like this: +@ID @OneRow @Code { +"@CP" +" style { varying }" +"{" +"#include " +"" +"treeprint(p) /* print tree p recursively */" +"struct tnode *p;" +"{" +" if (p != NULL) {" +" treeprint(p->left);" +" printf(\"%4d %s\\n\", p->count, p->word);" +" treeprint(p->right);" +" }" +"}" +"}" +} +The result in this case will be +@ID @OneRow @CP style { varying } +{ +#include + +treeprint(p) /* print tree p recursively */ +struct tnode *p; +{ + if (p != NULL) { + treeprint(p->left); + printf("%4d %s\n", p->count, p->word); + treeprint(p->right); + } +} +} +If we use @Code "style { symbol }" we get this: +@ID @OneRow @CP style { symbol } +{ +#include + +treeprint(p) /* print tree p recursively */ +struct tnode *p; +{ + if (p != NULL) { + treeprint(p->left); + printf("%4d %s\n", p->count, p->word); + treeprint(p->right); + } +} +} +with mathematical symbols replacing some of the operators. +@PP +The {@Code "@CP"}, {@Code "@Eiffel"} etc. symbols have additional options +which allow a finer control over the style. Here they all are, with their +default values: +@ID @OneRow @Code { +"@CP [ or @Eiffel, @Blue, etc. ]" +" style { fixed }" +" font { Courier }" +" size { -1.0p }" +" line { 1.0vx }" +" tabin { 8 }" +" tabout { 8s }" +" identifiers { Base }" +" keywords { Base }" +" operators { Base }" +" numbers { Base }" +" strings { Base }" +" comments { Base }" +"{" +" ..." +"}" +} +We are already familiar with {@Code "style"}. After that comes +{@Code "font"}, which determines the font family to use, {@Code "size"}, +the font size to use, and {@Code "line"}, the inter-line spacing. The +default value for @Code "size" asks for one point smaller than in the +surrounding document; this was done to compensate for Courier's relatively +large appearance compared to other fonts of the same nominal size. +@PP +The @Code "tabin" and @Code "tabout" options are the subject of +Section {@NumberOf tabs}. After them come six options giving the +particular font faces in which to print identifiers, keywords, operators, +numbers, strings, and comments. {@Code "Base"} means the basic face; other +commonly available choices are {@Code "Slope"} and {@Code "Bold"}. These +options may all be set to different faces if desired. The default values +shown are correct for @Code "style { fixed }" only; the other styles +have other defaults (Section {@NumberOf cpsetup}). +@End @Section diff --git a/doc/user/prg_perl b/doc/user/prg_perl new file mode 100644 index 0000000..4a14860 --- /dev/null +++ b/doc/user/prg_perl @@ -0,0 +1,108 @@ +@Section + @Title { Notes on Perl and Pod } + @Tag { prg_perl } +@Begin +@PP +The Perl programming language +@FootNote { My thanks to Mark Summerfield for help with Perl and Pod. } +is quite a difficult one for the @Code { prg2lout } program to deal with, +and our boast that programs can be included with `absolutely no +modifications' is not quite true for Perl. +@PP +Here is the complete list of problem areas. In most cases their +effect is to get the formatting wrong over a short region, which is not +perhaps so disastrous; and it should be easy to modify your Perl program +without changing its meaning, to work around these problems. After all, +in Perl there is always more than one way to do it. +@NumberedList + +@LI { +@I Here-documents such as +@ID @Verbatim { +<<"EOF" +These lines will be read as though +enclosed in double quotes +EOF +} +will be handled correctly only if the string appearing immediately after +the @Perl { << } operator (that is, the string used to terminate the +here-document) is one of @Perl { EOF }, @Perl { EOT }, @Perl { END }, +and the empty string, all optionally enclosed in quotes of any of the +three kinds. If this condition is not met, then the here-document will +be treated as Perl program text. If the condition is met, there is still +another problem: everything after the @Perl { << } symbol on the same +line will be treated (incorrectly) as a string; the worst consequence +of this is that stacked here-documents will not be printed properly. +} + +@LI { +When @Code { prg2lout } is scanning the program text looking for the +beginning of a lexical unit, it may come upon a @Code "/" character, +and this @I initial @Code "/" (not subsequent ones in the same lexical +unit) it finds difficult to interpret, since it may be the beginning +of a regular expression, to be formatted like a string, or it may be a +complete lexical unit denoting division. The program chooses the regular +expression (or equivalently, string) interpretation if the @Code "/" +character is immediately preceded by @Code { "q" }, @Code { "qq" }, +@Code { "qx" }, @Code { "qw" }, @Code { "qr" }, @Code { "m" }, +@Code { "s" }, @Code { "y" }, or @Code { "tr" }. It also chooses the +regular expression interpretation if the @Code "/" character appears +at the start of a line, or if it is +immediately preceded by zero, one, or two space or tab characters, which +are themselves immediately preceded by a complete lexical unit which is +one of @Code { "(" }, @Code { "=" }, @Code { "=~" }, @Code { "!~" }, +@Code { "split" }, @Code { "if" }, @Code { "not" }, @Code { "unless" }, +@Code { "for" }, @Code { "foreach" }, and @Code { "while" }. Otherwise +it chooses the division interpretation. In the rare cases where this +rule fails, you can force @Code { prg2lout } to choose the regular expression +interpretation by placing an @Code { m } in front of the initial @Code "/" +(this does not change the meaning of the program), and you can force the +division interpretation by placing at least three spaces before the +@Code "/" character. +} + +@LI { +The @Code { prg2lout } program recognises complete substitution operators, +such as @Code "s/abc/ABC/" and {@Code "s{abc}{ABC}"}, as individual lexical +units, and it formats them as it does strings. However, its rule for +deciding where these units end is rather simple-minded: at the start, +it works out what character finishes the unit (in the examples above, +@Code "/" and @Code "}" respectively), and scans along until it reaches +the second occurrence of this character not preceded by the @Code "\\" +escape character. This is inadequate in two respects. Firstly, +@ID @Code "s{{}}{}" +is a complete legal substitution expression in Perl, but @Code { prg2lout } +will think it ends after the second {@Code "}"}, and so format the rest +of it wrongly. Secondly, and more seriously, +@ID @Code "s{abc}" +is also allowed in Perl, but @Code { prg2lout } does not understand that +the finishing character can change in this way, so in this example it will +keep scanning forever, looking for the second @Code "}" character, which is +disastrous. +} + +@EndList +Further work may eliminate some of these problems. +@PP +The Pod language is used by Perl programmers for creating documentation, +and may be found within Perl programs or standing alone. Lout supports +both arrangements without any special action by the user. At the +beginning of the @Code perl setup line, the following line has been placed: +@ID @Code "@SysInclude { pod }" +Thus, asking for Perl always gives you Pod as well. If you are using +your own setup files for both languages, it is probably better to +break this connection by deleting this line from your copy of the +@Code perl setup file and placing +@ID @Code { +"@Include { mypod }" +"@Include { myperl }" +} +at the start of your document in the usual way. +@PP +Because Pod is a documentation language rather than a programming +language, the setup file options listed in Section {@NumberOf cpsetup} +do not really apply. So for Pod only these have been discarded and replaced +by a completely different set of options, controlling such things as +the size of headings and the gaps between list items, which you can +find documented in the @Code { pod } setup file. +@End @Section diff --git a/doc/user/prg_pipe b/doc/user/prg_pipe new file mode 100644 index 0000000..afbb87e --- /dev/null +++ b/doc/user/prg_pipe @@ -0,0 +1,57 @@ +@Section + @Title { Reading and selecting program text from separate files } + @Tag { pipes } +@Begin +@PP +We have said that program text within @Code "@CP { ... }" and the other +symbols is passed directly to @Code prg2lout for analysis. However, +there is an exception. The program text may contain an +@Code "@Include" or @Code "@SysInclude" command, which, as for the +@Code "@Verbatim" symbol (Section {@NumberOf verbatim}), causes Lout +to take the program text from a file: +@ID @Code { +"@Eiffel" +"{" +" @Include { \"/usr/staff/jeff/Eiffel/hash.e\" }" +"}" +} +The included file is not examined for balanced braces or @Code "@End" or +{@Code "@Include"}; it is treated entirely verbatim and passed straight +on to {@Code prg2lout}. There may be several @Code "@Include" commands, +and any amount of program text as well, within @Code "@CP { ... }" and +the rest. +@PP +When including files in this way it often happens that only part of an +actual program file is wanted for display. Rather than placing the +wanted part in a separate file, which is error-prone and tedious when +the program is changing, Unix users can use the @Code "pipe" option +to pipe the entire file through an arbitrary sequence of Unix commands, +which may be used to make the wanted selection before the program text +is passed to {@Code prg2lout}. +@PP +For example, suppose that all your Eiffel routines begin with the +routine name one tab stop from the left margin and end at the first +following @Eiffel { end } indented two tab stops. Then +@ID @Code { +"@Eiffel" +" pipe { \"sed -n /^.insert/,/^..end/p\" }" +"{" +" @Include { \"/usr/staff/jeff/Eiffel/hash.e\" }" +"}" +} +will select just the @Eiffel { insert } routine from the @Code { hash.e } +file. Assuming that your program text has been laid out in a +disciplined manner, every line of the selection will begin with a +tab character that is not wanted in this display, so an even better +pipe is +@ID @Code { +"@Eiffel" +" pipe { \"sed -n /^.insert/,/^..end/p | cut -c2-\" }" +"{" +" @Include { \"/usr/staff/jeff/Eiffel/hash.e\" }" +"}" +} +since it cuts away the unwanted tab characters. Unfortunately, we +can't show the result of this on an actual example, since that would +prevent this manual from being formatted on a non-Unix system. +@End @Section diff --git a/doc/user/prg_prog b/doc/user/prg_prog new file mode 100644 index 0000000..8d343f6 --- /dev/null +++ b/doc/user/prg_prog @@ -0,0 +1,35 @@ +@Section + @Title { Embedding program text within program comments } + @Tag { cpp_prog } +@Begin +@PP +The standard reference for the Eiffel language @Cite { $meyer1992eiffel } +specifies that identifiers within comments may or should be enclosed +in ` and ' so that they may be noticed and printed in an italic +font: +@ID @Code @Verbatim { +@ID @Eiffel { +deposit(amount: REAL) is + -- deposit `amount' dollars +} +} +produces +@ID @Eiffel { +deposit(amount: REAL) is + -- deposit `amount' dollars +} +This has been generalized in Lout: arbitrary text within an +Eiffel comment between ` and ' will be treated as Eiffel text and +printed accordingly. Some other languages may also offer this +feature: see the fifth column of the table at the start of this +chapter. In principle the precise means of getting it could vary +from language to language, but the languages available at the moment +either do not have it at all, or else they use ` and ' like Eiffel. +@PP +On the subject of Eiffel, the Eiffel reference @Cite { $meyer1992eiffel } +has some quite detailed style guidelines, and these have been closely +followed in the implementation of the @Code "@Eiffel" symbol. In +particular, @Code "@Eiffel" prints dots larger than usual when they +denote feature calls, as the example @OneCol @Eiffel { account.deposit(20) } +shows. +@End @Section diff --git a/doc/user/prg_tabs b/doc/user/prg_tabs new file mode 100644 index 0000000..3a04bfa --- /dev/null +++ b/doc/user/prg_tabs @@ -0,0 +1,66 @@ +@Section + @Title { Dealing with tab characters in programs } + @Tag { tabs } +@Begin +@PP +Tab characters provide a convenient way to indent and align parts of +tab.c @Index { tab characters in programs } +computer programs. With care, this alignment can be preserved in the final +print even with varying-width fonts. +@PP +The distance between two tab stops in the program text is by default taken +to be 8 characters, which is standard for Unix. This can be changed with +the @Code "tabin" option. For example, +@ID @Code "@CP tabin { 4 }" +informs Lout that tab stops occur every 4 characters in the program +text. All the symbols ({@Code "@CP"}, {@Code "@Eiffel"}, etc.) and +their setup files have this option and the next; but to save repetition +we will stick with C for the rest of this section. +@PP +The distance between two tab stops on the printed page is quite a different +thing, and it is determined by the value of the @Code "tabout" option, which +must be a Lout length. For example, +@ID @Code "@CP tabout { 0.5i }" +requests that tab stops be placed at half-inch intervals. In other +words, a distance of one tab stop in the program text will be equivalent to a +distance of half an inch on the printed page. For example, +@ID @Code "@CP style { varying } tabout { 3f }" +might produce the following, where tab characters in the program text +have been used for indenting and also to align the comments: +@ID @OneRow @CP style { varying } tabout { 3f } { +struct tnode { /* the basic node */ + char *word; /* points to the text */ + int count; /* number of occurrences */ + struct tnode *left; /* left child */ + struct tnode *right; /* right child */ +}; +} +The value {@Code "3f"} means three times the current font size, and +it is the default value of @Code "tabout" for the @Code { varying } +and @Code { symbol } styles (Section {@NumberOf cpsetup}). In a +12 point font this is 36 points, or half an inch. +@PP +If @Code "tabout" is too small, there is a danger that the +alignment might fail. For example, +@ID @Code "@CP style { varying } tabout { 0.2i }" +produces +@ID @OneRow @CP style { varying } tabout { 0.2i } { +struct tnode { /* the basic node */ + char *word; /* points to the text */ + int count; /* number of occurrences */ + struct tnode *left; /* left child */ + struct tnode *right; /* right child */ +}; +} +given the same C text as the previous example. The problem here is that +we are asking for @CP { /* } to appear four tab stops or 0.8 inches +from the left edge, and yet the material to its left on the line is +wider than this. This causes @CP { /* } to be shifted further to the +right than expected, and the alignment is lost. The only solution is +to increase {@Code "tabout"}. +@PP +When typesetting computer program texts independently of any document, +there are @Code "-t" and @Code "-T" options to the @Code "prg2lout" +program equivalent to @Code "tabin" and @Code "tabout" respectively. For +example, @Code "-T0.5i" produces a half-inch tab width. +@End @Section diff --git a/doc/user/user.ps b/doc/user/user.ps new file mode 100644 index 0000000..203f7e3 --- /dev/null +++ b/doc/user/user.ps @@ -0,0 +1,5202 @@ +%!PS-Adobe-3.0 +%%Creator: Basser Lout Version 3.19 (March 2000) +%%CreationDate: Mon Apr 3 16:16:36 2000 +%%DocumentData: Binary +%%DocumentNeededResources: (atend) +%%DocumentSuppliedResources: (atend) +%%DocumentMedia: A4 595 842 0 white () +%%PageOrder: Ascend +%%Pages: (atend) +%%BoundingBox: 0 0 595 842 +%%EndComments + +%%BeginProlog +%%BeginResource: procset LoutStartUp +/m { 3 1 roll moveto show } bind def +/mo { 3 1 roll moveto true charpath stroke } bind def +/s { exch currentpoint exch pop moveto show } bind def +/so { exch currentpoint exch pop moveto true charpath stroke } bind def +/k { exch neg 0 rmoveto show } bind def +/ko { exch neg 0 rmoveto true charpath stroke } bind def +/ul { gsave setlinewidth dup 3 1 roll + moveto lineto stroke grestore } bind def +/in { 1440 mul } def +/cm { 567 mul } def +/pt { 20 mul } def +/em { 120 mul } def +/sp { louts mul } def +/vs { loutv mul } def +/ft { loutf mul } def +/dg { } def + +/LoutGraphic { + /louts exch def + /loutv exch def + /loutf exch def + /ymark exch def + /xmark exch def + /ysize exch def + /xsize exch def +} def + +/LoutGr2 { gsave translate LoutGraphic gsave } def + +/LoutFont +{ findfont exch scalefont setfont +} bind def + +/LoutRecode { + { findfont dup length dict begin + {1 index /FID ne {def} {pop pop} ifelse} forall + /Encoding exch def + currentdict end definefont pop + } + stopped pop +} bind def + +/BeginEPSF { + /LoutEPSFState save def + /dict_count countdictstack def + /op_count count 1 sub def + userdict begin + /showpage { } def + 0 setgray 0 setlinecap + 1 setlinewidth 0 setlinejoin + 10 setmiterlimit [] 0 setdash newpath + /languagelevel where + { pop languagelevel + 1 ne + { false setstrokeadjust false setoverprint + } if + } if +} bind def + +/EndEPSF { + count op_count sub { pop } repeat + countdictstack dict_count sub { end } repeat + LoutEPSFState restore +} bind def +%%EndResource + +%%BeginResource: encoding vec2 +/vec2 [ +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef /.notdef +/space /exclam /quotedbl /numbersign /dollar /percent /ampersand /quoteright +/parenleft /parenright /asterisk /plus /comma /hyphen /period /slash +/zero /one /two /three /four /five /six /seven +/eight /nine /colon /semicolon /less /equal /greater /question +/at /A /B /C /D /E /F /G +/H /I /J /K /L /M /N /O +/P /Q /R /S /T /U /V /W +/X /Y /Z /bracketleft /backslash /bracketright /asciicircum /underscore +/quoteleft /a /b /c /d /e /f /g +/h /i /j /k /l /m /n /o +/p /q /r /s /t /u /v /w +/x /y /z /braceleft /bar /braceright /asciitilde /.notdef +/quotesinglbase /quotedblbase /ellipsis /OE /oe /quotedblleft /quotedblright /fi +/fl /endash /emdash /bullet /dagger /daggerdbl /florin /fraction +/dotlessi /grave /acute /circumflex /tilde /macron /breve /dotaccent +/dieresis /.notdef /ring /cedilla /.notdef /hungarumlaut /ogonek /caron +/space /exclamdown /cent /sterling /currency /yen /brokenbar /section +/dieresis /copyright /ordfeminine /guillemotleft /logicalnot /hyphen /registered /macron +/degree /plusminus /twosuperior /threesuperior /acute /mu /paragraph /periodcentered +/cedilla /onesuperior /ordmasculine /guillemotright /onequarter /onehalf /threequarters /questiondown +/Agrave /Aacute /Acircumflex /Atilde /Adieresis /Aring /AE /Ccedilla +/Egrave /Eacute /Ecircumflex /Edieresis /Igrave /Iacute /Icircumflex /Idieresis +/Eth /Ntilde /Ograve /Oacute /Ocircumflex /Otilde /Odieresis /multiply +/Oslash /Ugrave /Uacute /Ucircumflex /Udieresis /Yacute /Thorn /germandbls +/agrave /aacute /acircumflex /atilde /adieresis /aring /ae /ccedilla +/egrave /eacute /ecircumflex /edieresis /igrave /iacute /icircumflex /idieresis +/eth /ntilde /ograve /oacute /ocircumflex /otilde /odieresis /divide +/oslash /ugrave /uacute /ucircumflex /udieresis /yacute /thorn /ydieresis +] def +%%EndResource + +%%BeginResource: procset LoutTabPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/tabf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Tab % +% % +% To assist in avoiding name clashes, the names % +% of all these symbols begin with "ltab". % +% % +% Jeffrey H. Kingston % +% 24 September 1991 % +% 22 December 1992 % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +% linewidth ltabhs - +% horizontal single line +/ltabhs +{ 0 0 moveto xsize 0 lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhsp - +% horizontal single line with projecting ends +/ltabhsp +{ 0 0 moveto xsize 0 lineto + setlinewidth 2 setlinecap stroke +} def + +% linewidth ltabhd - +% horizontal double line +/ltabhd +{ dup dup + 0 0 moveto xsize 0 lineto + 0 exch 3 mul moveto xsize exch 3 mul lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhdb - +% horizontal double line below mark +/ltabhdb +{ dup dup + 0 0 moveto xsize 0 lineto + 0 exch -3 mul moveto xsize exch -3 mul lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabhdnw - +% horizontal double line with northwest corner +/ltabhdnw +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + xsize exch 3 mul moveto + -3 mul exch 3 mul lineto + -3 mul 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdne - +% horizontal double line with northeast corner +/ltabhdne +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + 0 exch 3 mul moveto + 3 mul xsize add exch 3 mul lineto + 3 mul xsize add 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdsw - +% horizontal double line with southwest corner +/ltabhdsw +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + xsize exch -3 mul moveto + -3 mul exch -3 mul lineto + -3 mul 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabhdse - +% horizontal double line with southeast corner +/ltabhdse +{ dup dup dup dup + 0 0 moveto xsize 0 lineto + 0 exch -3 mul moveto + 3 mul xsize add exch -3 mul lineto + 3 mul xsize add 0 lineto + setlinewidth 0 setlinejoin 2 setlinecap stroke +} def + +% linewidth ltabvs - +% vertical single line +/ltabvs +{ 0 0 moveto 0 ysize lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabvd - +% vertical double line +/ltabvd +{ dup dup + 0 0 moveto 0 ysize lineto + -3 mul 0 moveto -3 mul ysize lineto + setlinewidth 0 setlinecap stroke +} def + +% linewidth ltabvdr - +% vertical double line to right of mark +/ltabvdr +{ dup dup + 0 0 moveto 0 ysize lineto + 3 mul 0 moveto 3 mul ysize lineto + setlinewidth 0 setlinecap stroke +} def +%%EndResource + +%%BeginResource: procset LoutTblPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/tblf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Tbl Jeffrey H. Kingston % +% Version 1.0 June 1998 % +% % +% To assist in avoiding name clashes, the names of all symbols % +% defined here begin with "ltbl". % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +% painting (i.e. filling): - ltblwhite - (etc.) +/ltblnopaint { } def +/ltblnochange { fill } def +/ltbldarkblue { 0.0 0.0 0.5 setrgbcolor fill } def +/ltblblue { 0.0 0.0 1.0 setrgbcolor fill } def +/ltbllightblue { 0.5 0.5 1.0 setrgbcolor fill } def +/ltbldarkgreen { 0.0 0.5 0.0 setrgbcolor fill } def +/ltblgreen { 0.0 1.0 0.0 setrgbcolor fill } def +/ltbllightgreen { 0.5 1.0 0.5 setrgbcolor fill } def +/ltbldarkred { 0.5 0.0 0.0 setrgbcolor fill } def +/ltblred { 1.0 0.0 0.0 setrgbcolor fill } def +/ltbllightred { 1.0 0.5 0.5 setrgbcolor fill } def +/ltbldarkcyan { 0.0 0.5 0.5 setrgbcolor fill } def +/ltblcyan { 0.0 1.0 1.0 setrgbcolor fill } def +/ltbllightcyan { 0.5 1.0 1.0 setrgbcolor fill } def +/ltbldarkmagenta { 0.5 0.0 0.5 setrgbcolor fill } def +/ltblmagenta { 1.0 0.0 1.0 setrgbcolor fill } def +/ltbllightmagenta { 1.0 0.5 1.0 setrgbcolor fill } def +/ltbldarkyellow { 0.5 0.5 0.0 setrgbcolor fill } def +/ltblyellow { 1.0 1.0 0.0 setrgbcolor fill } def +/ltbllightyellow { 1.0 1.0 0.5 setrgbcolor fill } def +/ltbldarkgray { 0.2 0.2 0.2 setrgbcolor fill } def +/ltblgray { 0.5 0.5 0.5 setrgbcolor fill } def +/ltbllightgray { 0.8 0.8 0.8 setrgbcolor fill } def +/ltbldarkgrey { 0.2 0.2 0.2 setrgbcolor fill } def +/ltblgrey { 0.5 0.5 0.5 setrgbcolor fill } def +/ltbllightgrey { 0.8 0.8 0.8 setrgbcolor fill } def +/ltblblack { 0.0 0.0 0.0 setrgbcolor fill } def +/ltblwhite { 1.0 1.0 1.0 setrgbcolor fill } def +%%EndResource + +%%BeginResource: procset LoutFigPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/figf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Fig Jeffrey H. Kingston % +% Version 2.0 (includes CIRCUM label) January 1992 % +% % +% To assist in avoiding name clashes, the names of all symbols % +% defined here begin with "lfig". However, this is not feasible % +% with user-defined labels and some labels used by users. % +% % +% is two numbers, a point. % +% is one number, a length % +% is one number, an angle in degrees % +% is one number, the preferred length of a dash % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +errordict begin + /handleerror + { + { /Times-Roman findfont 8 pt scalefont setfont + 0 setgray 4 pt 4 pt moveto + $error /errorname get + dup lfigdict exch known + { lfigdict exch get } + { 30 string cvs } ifelse + show + ( Command: ) show + $error /command get 30 string cvs show + } stopped {} if + showpage stop + } def +end + +% concat strings: lfigconcat +% must be defined outside lfigdict since used in lfigpromotelabels +/lfigconcat +{ 2 copy length exch length add string + dup 0 4 index putinterval + dup 3 index length 3 index putinterval + 3 1 roll pop pop +} def + +% lfigdebugprint - +% must be defined outside lfigdict since used in arbitrary places +% /lfigdebugprint +% { print +% (; operand stack:\n) print +% count copy +% count 2 idiv +% { == +% (\n) print +% } repeat +% (\n) print +% } def + +/lfigdict 120 dict def +lfigdict begin + +% error messages +/dictfull (dictfull error: too many labels?) def +/dictstackoverflow (dictstackoverflow error: labels nested too deeply?) def +/execstackoverflow (execstackoverflow error: figure nested too deeply?) def +/limitcheck (limitcheck error: figure nested too deeply or too large?) def +/syntaxerror (syntaxerror error: syntax error in text of figure?) def +/typecheck (typecheck error: syntax error in text of figure?) def +/undefined (undefined error: unknown or misspelt label?) def +/VMError (VMError error: run out of memory?) def + +% push pi onto stack: - lfigpi +/lfigpi 3.14159 def + +% arc directions +/clockwise false def +/anticlockwise true def + +% maximum of two numbers: lfigmax +/lfigmax { 2 copy gt { pop } { exch pop } ifelse } def + +% minimum of two numbers: lfigmin +/lfigmin { 2 copy lt { pop } { exch pop } ifelse } def + +% add two points: lfigpadd +/lfigpadd { exch 3 1 roll add 3 1 roll add exch } def + +% subtract first point from second: lfigpsub +/lfigpsub { 3 2 roll sub 3 1 roll exch sub exch } def + +% max two points: lfigpmax +/lfigpmax { exch 3 1 roll lfigmax 3 1 roll lfigmax exch } def + +% min two points: lfigpmin +/lfigpmin { exch 3 1 roll lfigmin 3 1 roll lfigmin exch } def + +% scalar multiplication: lfigpmul +/lfigpmul { dup 3 1 roll mul 3 1 roll mul exch } def + +% point at angle and distance: lfigatangle +/lfigatangle { 2 copy cos mul 3 1 roll sin mul lfigpadd } def + +% angle from one point to another: lfigangle +/lfigangle { lfigpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def + +% distance between two points: lfigdistance +/lfigdistance { lfigpsub dup mul exch dup mul add sqrt } def + +% difference in x coords: lfigxdistance +/lfigxdistance { pop 3 1 roll pop sub } def + +%difference in y coords: lfigydistance +/lfigydistance { 3 1 roll pop sub exch pop } def + +% stroke a solid line: lfigsolid - +/lfigsolid +{ pop pop [] 0 setdash stroke +} def + +% stroke a lfigdashed line: lfigdashed - +/lfigdashed +{ 2 copy div 2 le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch dup ] 0 setdash } + { dup [ exch 4 2 roll 2 copy div + 1 sub 2 div ceiling dup 4 1 roll + 1 add mul sub exch div ] 0 setdash + } ifelse stroke +} def + +% stroke a lfigcdashed line: lfigcdashed - +/lfigcdashed +{ 2 copy le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch dup ] dup 0 get 2 div setdash } + { dup [ 4 2 roll exch 2 copy exch div + 2 div ceiling div 1 index sub + ] exch 2 div setdash + } ifelse stroke +} def + +% stroke a dotted line: lfigdotted - +/lfigdotted +{ 2 copy le 1 index 0 le or + { exch pop 1 pt lfigmax [ exch 0 exch ] 0 setdash } + { 1 index exch div ceiling div + [ 0 3 2 roll ] 0 setdash + } ifelse stroke +} def + +% stroke a noline line: lfignoline - +/lfignoline +{ pop pop +} def + +% painting (i.e. filling): - lfigwhite - (etc.) +/lfignopaint { } def +/lfignochange { fill } def +/lfigdarkblue { 0.0 0.0 0.5 setrgbcolor fill } def +/lfigblue { 0.0 0.0 1.0 setrgbcolor fill } def +/lfiglightblue { 0.5 0.5 1.0 setrgbcolor fill } def +/lfigdarkgreen { 0.0 0.5 0.0 setrgbcolor fill } def +/lfiggreen { 0.0 1.0 0.0 setrgbcolor fill } def +/lfiglightgreen { 0.5 1.0 0.5 setrgbcolor fill } def +/lfigdarkred { 0.5 0.0 0.0 setrgbcolor fill } def +/lfigred { 1.0 0.0 0.0 setrgbcolor fill } def +/lfiglightred { 1.0 0.5 0.5 setrgbcolor fill } def +/lfigdarkcyan { 0.0 0.5 0.5 setrgbcolor fill } def +/lfigcyan { 0.0 1.0 1.0 setrgbcolor fill } def +/lfiglightcyan { 0.5 1.0 1.0 setrgbcolor fill } def +/lfigdarkmagenta { 0.5 0.0 0.5 setrgbcolor fill } def +/lfigmagenta { 1.0 0.0 1.0 setrgbcolor fill } def +/lfiglightmagenta { 1.0 0.5 1.0 setrgbcolor fill } def +/lfigdarkyellow { 0.5 0.5 0.0 setrgbcolor fill } def +/lfigyellow { 1.0 1.0 0.0 setrgbcolor fill } def +/lfiglightyellow { 1.0 1.0 0.5 setrgbcolor fill } def +/lfigdarkgray { 0.2 0.2 0.2 setrgbcolor fill } def +/lfiggray { 0.5 0.5 0.5 setrgbcolor fill } def +/lfiglightgray { 0.8 0.8 0.8 setrgbcolor fill } def +/lfigdarkgrey { 0.2 0.2 0.2 setrgbcolor fill } def +/lfiggrey { 0.5 0.5 0.5 setrgbcolor fill } def +/lfiglightgrey { 0.8 0.8 0.8 setrgbcolor fill } def +/lfigblack { 0.0 0.0 0.0 setrgbcolor fill } def +/lfigwhite { 1.0 1.0 1.0 setrgbcolor fill } def + +% line caps (and joins, not currently used) +/lfigbutt 0 def +/lfiground 1 def +/lfigprojecting 2 def +/lfigmiter 0 def +/lfigbevel 2 def + +% shape and labels of the @Box symbol +/lfigbox +{ + 0 0 /SW lfigpointdef + xsize 0 /SE lfigpointdef + xsize ysize /NE lfigpointdef + 0 ysize /NW lfigpointdef + SE 0.5 lfigpmul /S lfigpointdef + NW 0.5 lfigpmul /W lfigpointdef + W SE lfigpadd /E lfigpointdef + S NW lfigpadd /N lfigpointdef + NE 0.5 lfigpmul /CTR lfigpointdef + [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @CurveBox symbol +/lfigcurvebox +{ + + xsize 0.5 mul ysize 0.5 mul /CTR lfigpointdef + xsize 0.5 mul 0 /S lfigpointdef + xsize ysize 0.5 mul /E lfigpointdef + xsize 0.5 mul ysize /N lfigpointdef + 0 ysize 0.5 mul /W lfigpointdef + + xmark 0.293 mul xmark 0.293 mul /SW lfigpointdef + xsize xmark 0.293 mul sub xmark 0.293 mul /SE lfigpointdef + xsize xmark 0.293 mul sub ysize xmark 0.293 mul sub /NE lfigpointdef + xmark 0.293 mul ysize xmark 0.293 mul sub /NW lfigpointdef + + [ xsize ysize 0.5 lfigpmul xmark /lfigcurveboxcircum cvx ] lfigcircumdef + + xmark 0 + xsize xmark sub 0 + [ xsize xmark sub xmark ] + xsize xmark + xsize ysize xmark sub + [ xsize xmark sub ysize xmark sub ] + xsize xmark sub ysize + xmark ysize + [ xmark ysize xmark sub ] + 0 ysize xmark sub + 0 xmark + [ xmark xmark ] + xmark 0 +} def + +% shadow of the @ShadowBox symbol +% its shape and labels are done, somewhat inaccurately, with lfigbox +/lfigshadow +{ xmark 2 mul 0 moveto xsize 0 lineto + xsize ysize xmark 2 mul sub lineto + xsize xmark sub ysize xmark 2 mul sub lineto + xsize xmark sub xmark lineto + xmark 2 mul xmark lineto closepath fill +} def + +% shape and labels of the @Square symbol +/lfigsquare +{ + xsize ysize 0.5 lfigpmul /CTR lfigpointdef + CTR xsize xsize ysize ysize lfigpmax 0.5 lfigpmul lfigpadd /NE lfigpointdef + CTR 0 0 CTR NE lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef + CTR 0 0 CTR NE lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef + CTR 0 0 CTR NE lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef + SW 0.5 lfigpmul SE 0.5 lfigpmul lfigpadd /S lfigpointdef + NW 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /N lfigpointdef + SW 0.5 lfigpmul NW 0.5 lfigpmul lfigpadd /W lfigpointdef + SE 0.5 lfigpmul NE 0.5 lfigpmul lfigpadd /E lfigpointdef + [ CTR NE lfigpsub /lfigboxcircum cvx ] lfigcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @Diamond symbol +/lfigdiamond +{ + xsize 0 0.5 lfigpmul /S lfigpointdef + 0 ysize 0.5 lfigpmul /W lfigpointdef + S W lfigpadd /CTR lfigpointdef + CTR W lfigpadd /N lfigpointdef + CTR S lfigpadd /E lfigpointdef + [ xsize ysize 0.5 lfigpmul /lfigdiamondcircum cvx ] lfigcircumdef + S E N W S +} def + +% shape and labels of the @Ellipse symbol +/lfigellipse +{ + xsize 0 0.5 lfigpmul /S lfigpointdef + 0 ysize 0.5 lfigpmul /W lfigpointdef + S W lfigpadd /CTR lfigpointdef + CTR W lfigpadd /N lfigpointdef + CTR S lfigpadd /E lfigpointdef + CTR xsize 0 0.3536 lfigpmul lfigpadd 0 ysize 0.3536 lfigpmul lfigpadd /NE lfigpointdef + 0 ysize 0.3536 lfigpmul CTR xsize 0 0.3536 lfigpmul lfigpadd lfigpsub /SE lfigpointdef + xsize 0 0.3536 lfigpmul CTR lfigpsub 0 ysize 0.3536 lfigpmul lfigpadd /NW lfigpointdef + 0 ysize 0.3536 lfigpmul xsize 0 0.3536 lfigpmul CTR lfigpsub lfigpsub /SW lfigpointdef + [ xsize ysize 0.5 lfigpmul /lfigellipsecircum cvx ] lfigcircumdef + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @Circle symbol +/lfigcircle +{ + xsize ysize 0.5 lfigpmul /CTR lfigpointdef + CTR xsize 0 ysize 0 lfigpmax 0.5 lfigpmul lfigpadd /E lfigpointdef + CTR 0 0 CTR E lfigdistance 45 lfigatangle lfigpadd /NE lfigpointdef + CTR 0 0 CTR E lfigdistance 90 lfigatangle lfigpadd /N lfigpointdef + CTR 0 0 CTR E lfigdistance 135 lfigatangle lfigpadd /NW lfigpointdef + CTR 0 0 CTR E lfigdistance 180 lfigatangle lfigpadd /W lfigpointdef + CTR 0 0 CTR E lfigdistance 225 lfigatangle lfigpadd /SW lfigpointdef + CTR 0 0 CTR E lfigdistance 270 lfigatangle lfigpadd /S lfigpointdef + CTR 0 0 CTR E lfigdistance 315 lfigatangle lfigpadd /SE lfigpointdef + [ S E lfigpsub /lfigellipsecircum cvx ] lfigcircumdef + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @HLine and @HArrow symbols +/lfighline +{ + 0 ymark lfigprevious /FROM lfigpointdef + xsize ymark lfigprevious /TO lfigpointdef +} def + +% shape and labels of the @VLine and @VArrow symbols +/lfigvline +{ + xmark ysize lfigprevious /FROM lfigpointdef + xmark 0 lfigprevious /TO lfigpointdef +} def + +% points of a polygon around base with given no of sides, vert init angle: +% figpolygon ... +/lfigpolygon +{ xsize ysize 0.5 lfigpmul /CTR lfigpointdef + 90 sub CTR 2 copy lfigmax 5 3 roll + [ 4 copy pop /lfigpolycircum cvx ] lfigcircumdef + exch dup 360 exch div exch + 1 1 3 2 roll + { 4 string cvs (P) exch lfigconcat cvn + 6 copy pop pop lfigatangle 2 copy 10 2 roll + 3 2 roll lfigpointdef + dup 3 1 roll add exch + } for + pop lfigatangle +} def + +% next array element: lfiggetnext true +% or false +/lfiggetnext +{ 2 copy exch length ge + { false } + { 2 copy get exch 1 add exch true } ifelse +} def + +% check whether thing is number: lfigisnumbertype +/lfigisnumbertype +{ dup type dup + /integertype eq exch /realtype eq or +} def + +% check whether thing is an array: lfigisarraytype +/lfigisarraytype { dup type /arraytype eq } def + +% get next item: lfiggetnextitem 0 +% or 1 +% or 2 +/lfiggetnextitem +{ lfiggetnext + { lfigisarraytype + { 1 + } + { lfigisnumbertype + { 3 1 roll + lfiggetnext + { lfigisnumbertype + { 4 3 roll exch 2 + } + { pop 3 2 roll pop 0 + } ifelse + } + { 3 2 roll pop 0 + } ifelse + } + { pop 0 + } ifelse + } ifelse + } + { 0 + } ifelse +} def + +% set arc path: bool x1 y1 x2 y2 x0 y0 lfigsetarc +% the path goes from x1 y1 to x2 y2 about centre x0 y0, +% anticlockwise if bool is true else clockwise. +% The orientations of backwards pointing and forwards pointing +% arrowheads are returned in the two angles, and +% the length of the arc is returned in . +/lfigsetarc +{ + 20 dict begin + matrix currentmatrix 8 1 roll + 2 copy translate 2 copy 8 2 roll + 4 2 roll lfigpsub 6 2 roll lfigpsub + dup /y1 exch def dup mul /y1s exch def + dup /x1 exch def dup mul /x1s exch def + dup /y2 exch def dup mul /y2s exch def + dup /x2 exch def dup mul /x2s exch def + + y1s y2s eq + { -1 + } + { y1s x2s mul y2s x1s mul sub y1s y2s sub div + } ifelse + /da exch def + + x1s x2s eq + { -1 + } + { x1s y2s mul x2s y1s mul sub x1s x2s sub div + } ifelse + /db exch def + + da 0 gt db 0 gt and + { /LMax da sqrt db sqrt lfigmax def + /scalex da sqrt LMax div def + /scaley db sqrt LMax div def + scalex scaley scale + 0 0 LMax + 0 0 x1 scalex mul y1 scaley mul lfigangle + 0 0 x2 scalex mul y2 scaley mul lfigangle + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + dup sin scaley mul exch cos scalex mul atan + 2 index 2 index + { 90 add } { 90 sub } ifelse + dup sin scaley mul exch cos scalex mul atan + 5 2 roll % res1 res2 ang1 ang2 anticlockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if lfigpi mul LMax mul 180 div + } + { 0 0 x1 y1 lfigdistance 0 0 x2 y2 lfigdistance eq + 0 0 x1 y1 lfigdistance 0 gt and + { 0 0 + 0 0 x1 y1 lfigdistance + 0 0 x1 y1 lfigangle + 0 0 x2 y2 lfigangle + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + 2 index 2 index + { 90 add } { 90 sub } ifelse + 5 2 roll % res1 res2 ang1 ang2 clockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if lfigpi mul 0 0 x1 y1 lfigdistance mul 180 div + } + { x2 y2 lineto pop + x2 y2 x1 y1 lfigangle + x1 y1 x2 y2 lfigangle + x1 y1 x2 y2 lfigdistance + } ifelse + } ifelse + 4 -1 roll setmatrix + end +} def + +% lfigsetcurve: set up a Bezier curve from x0 y0 to x3 y3 +% and return arrowhead angles and length of curve (actually 0) +% x0 y0 x1 y1 x2 y2 x3 y3 lfigsetcurve +/lfigsetcurve +{ 8 copy curveto pop pop + lfigangle + 5 1 roll + 4 2 roll lfigangle + exch + 0 +} def + +% lfigpaintpath: paint a path of the given shape +% /paint [ shape ] lfigpaintpath - +/lfigpaintpath +{ + 10 dict begin + 0 newpath + /prevseen false def + /curveseen false def + { lfiggetnextitem + dup 0 eq { pop exit } + { 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /curveseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr + lfigsetcurve pop pop pop + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + lfigsetarc pop pop pop + } ifelse + } + { xcurr ycurr lineto + } ifelse + } + { xcurr ycurr moveto + } ifelse + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop pop pop cvx exec + end +} def + +% stroke a path of the given shape in the given linestyle and dash length. +% Return the origin and angle of the backward and forward arrow heads. +% dashlength /linestyle [shape] lfigdopath [ ] [ ] +/lfigdopath +{ + 10 dict begin + 0 + /prevseen false def + /curveseen false def + /backarrow [] def + /fwdarrow [] def + { + lfiggetnextitem + dup 0 eq { pop exit } + { + 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /prevseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { newpath xprev yprev moveto + curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr lfigsetcurve + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + lfigsetarc + } ifelse + } + { xcurr ycurr lineto + xcurr ycurr xprev yprev lfigangle dup 180 sub + xprev yprev xcurr ycurr lfigdistance + } ifelse + 6 index 6 index cvx exec + [ xprev yprev 5 -1 roll ] + backarrow length 0 eq + { /backarrow exch def } + { pop } ifelse + [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def + } if + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop + pop pop pop pop + backarrow length 0 eq { [ 0 0 0 ] } { backarrow } ifelse + fwdarrow length 0 eq { [ 0 0 0 ] } { fwdarrow } ifelse + end +} def + +% lfigdoarrow: draw an arrow head of given form +% dashlength /lstyle /pstyle hfrac height width [ ] lfigdoarrow - +/lfigdoarrow +{ matrix currentmatrix 8 1 roll + dup 0 get 1 index 1 get translate + 2 get rotate + [ 2 index neg 2 index 0 0 + 3 index 3 index neg + 1 index 10 index mul 0 + 7 index 7 index ] + 4 1 roll pop pop pop + dup 3 1 roll + gsave lfigpaintpath grestore lfigdopath pop pop + setmatrix +} def + +% arrow head styles +/lfigopen 0.0 def +/lfighalfopen 0.5 def +/lfigclosed 1.0 def + +% stroke no arrows, forward, back, and both +/lfignoarrow { pop pop pop pop pop pop pop pop } def +/lfigforward { 7 -1 roll lfigdoarrow pop } def +/lfigback { 8 -2 roll pop lfigdoarrow } def +/lfigboth { 8 -1 roll 7 copy lfigdoarrow pop 7 -1 roll lfigdoarrow } def + +% lfigprevious: return previous point on path +/lfigprevious +{ lfigisnumbertype + { 2 copy } + { lfigisarraytype + { 2 index 2 index } + { 0 0 } + ifelse + } ifelse +} def + +% label a point in 2nd top dictionary: /name lfigpointdef - +/lfigpointdef +{ + % (Entering lfigpointdef) lfigdebugprint + [ 4 2 roll transform + /itransform cvx ] cvx + currentdict end + 3 1 roll + % currentdict length currentdict maxlength lt + % { def } + % { exec moveto (too many labels) show stop } + % ifelse + def + begin + % (Leaving lfigpointdef) lfigdebugprint +} def + +% promote labels from second top to third top dictionary +% lfigpromotelabels - +/lfigpromotelabels +{ + % (Entering lfigpromotelabels) lfigdebugprint + currentdict end exch currentdict end + { exch 20 string cvs 2 index + (@) lfigconcat exch lfigconcat cvn exch def + } forall pop begin + % (Leaving lfigpromotelabels) lfigdebugprint +} def + +% show labels (except CIRCUM): - lfigshowlabels - +/lfigshowlabels +{ + % (Entering lfigshowlabels) lfigdebugprint + currentdict end + currentdict + { 1 index 20 string cvs (CIRCUM) search % if CIRCUM in key + { pop pop pop pop pop } + { pop cvx exec 2 copy + newpath 1.5 pt 0 360 arc + 0 setgray fill + /Times-Roman findfont 8 pt scalefont setfont + moveto 0.2 cm 0.1 cm rmoveto 20 string cvs show + } + ifelse + } forall + begin + % (Leaving lfigshowlabels) lfigdebugprint +} def + +% fix an angle to 0 <= res < 360: lfigfixangle +/lfigfixangle +{ + % (Entering lfigfixangle) lfigdebugprint + { dup 0 ge { exit } if + 360 add + } loop + { dup 360 lt { exit } if + 360 sub + } loop + % (Leaving lfigfixangle) lfigdebugprint +} def + +% find point on circumference of box: alpha a b lfigboxcircum x y +/lfigboxcircum +{ + % (Entering lfigboxcircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + 0 0 a b lfigangle /theta exch def + + % if alpha <= theta, return (a, a*tan(alpha)) + alpha theta le + { a a alpha sin mul alpha cos div } + { + % else if alpha <= 180 - theta, return (b*cot(alpha), b) + alpha 180 theta sub le + { b alpha cos mul alpha sin div b } + { + % else if alpha <= 180 + theta, return (-a, -a*tan(alpha)) + alpha 180 theta add le + { a neg a neg alpha sin mul alpha cos div } + { + % else if alpha <= 360 - theta, return (-b*cot(alpha), -b) + alpha 360 theta sub le + { b neg alpha cos mul alpha sin div b neg } + { + % else 360 - theta <= alpha, return (a, a*tan(alpha)) + a a alpha sin mul alpha cos div + } ifelse + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigboxcircum) lfigdebugprint +} def + +% find quadratic roots (assume a != 0): a b c lfigqroots x1 x2 2 +% or x2 1 +% or 0 +/lfigqroots +{ + 4 dict begin + /c exch def + /b exch def + /a exch def + /disc b b mul 4 a c mul mul sub def + disc 0 lt + { 0 + } + { disc 0 eq + { b neg 2 a mul div + 1 + } + { b neg disc sqrt add 2 a mul div + b neg disc sqrt sub 2 a mul div + 2 + } + ifelse + } + ifelse + end +} def + +% work our which quadrant: lfigquadrant <0-3> +/lfigquadrant +{ dup 90 lt + { pop 0 + } + { dup 180 lt + { pop 1 + } + { 270 lt + { 2 + } + { 3 + } ifelse + } ifelse + } ifelse +} def + +% find curvebox circum, assuming upper right quadrant: alpha a b xmk lfigcb x y +/lfigcb +{ + 6 dict begin + /xmk exch def + /b exch def + /a exch def + /alpha exch def + /theta1 0 0 a b xmk sub lfigangle def + /theta2 0 0 a xmk sub b lfigangle def + alpha theta1 le + { % if alpha <= theta1, return (a, a*tan(alpha)) + a a alpha sin mul alpha cos div + } + { alpha theta2 ge + { % else if alpha > theta2, return (b*cot(alpha), b) + b alpha cos mul alpha sin div b + } + { + % else, return the intersection of line and circle + a xmk sub b xmk sub xmk 0 0 alpha lfigcircleintersect + dup 0 eq + { % should never happen, just return any reasonable point + pop + a b 0.5 lfigpmul + } + { 1 eq + { % should never happen, just return the point on top of stack + } + { % the usual case, two points on stack, return the larger + lfigpmax + } ifelse + } ifelse + } ifelse + } ifelse + end +} def + +% find point on circumference of curvebox: alpha a b xmk lfigcurveboxcircum x y +/lfigcurveboxcircum +{ + % (Entering lfigcurveboxcircum) lfigdebugprint + 5 dict begin + /xmk exch def + /b exch def + /a exch def + lfigfixangle /alpha exch def + + % work out which quadrant we are in, and reflect accordingly + /quad alpha lfigquadrant def + quad 0 eq + { alpha a b xmk lfigcb + } + { quad 1 eq + { 180 alpha sub a b xmk lfigcb exch neg exch + } + { quad 2 eq + { alpha 180 sub a b xmk lfigcb neg exch neg exch + } + { 360 alpha sub a b xmk lfigcb neg + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigcurveboxcircum) lfigdebugprint +} def + +% find point on circumference of diamond: alpha a b lfigdiamondcircum x y +/lfigdiamondcircum +{ + % (Entering lfigdiamondcircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + b alpha cos abs mul a alpha sin abs mul add /denom exch def + a b mul alpha cos mul denom div + a b mul alpha sin mul denom div + end + % (Leaving lfigdiamondcircum) lfigdebugprint +} def + +% find point on circumference of ellipse: alpha a b lfigellipsecircum x y +/lfigellipsecircum +{ + % (Entering lfigellipsecircum) lfigdebugprint + 4 dict begin + /b exch def + /a exch def + lfigfixangle /alpha exch def + b alpha cos mul dup mul a alpha sin mul dup mul add sqrt /denom exch def + a b mul alpha cos mul denom div + a b mul alpha sin mul denom div + end + % (Leaving lfigellipsecircum) lfigdebugprint +} def + +% find point of intersection of two lines each defined by two points +% x1 y1 x2 y2 x3 y3 x4 y4 lfiglineintersect x y +/lfiglineintersect +{ + % (Entering lfiglineintersect) lfigdebugprint + 13 dict begin + /y4 exch def + /x4 exch def + /y3 exch def + /x3 exch def + /y2 exch def + /x2 exch def + /y1 exch def + /x1 exch def + x2 x1 sub /x21 exch def + x4 x3 sub /x43 exch def + y2 y1 sub /y21 exch def + y4 y3 sub /y43 exch def + y21 x43 mul y43 x21 mul sub /det exch def + + % calculate x + y21 x43 mul x1 mul + y43 x21 mul x3 mul sub + y3 y1 sub x21 mul x43 mul add + det div + + % calculate y + x21 y43 mul y1 mul + x43 y21 mul y3 mul sub + x3 x1 sub y21 mul y43 mul add + det neg div + + end + % (Leaving lfiglineintersect) lfigdebugprint +} def + +% find point on circumference of polygon +% alpha radius num theta lfigpolycircum x y +/lfigpolycircum +{ + % (Entering lfigpolycircum) lfigdebugprint + 13 dict begin + /theta exch def + /num exch def + /radius exch def + /alpha exch def + + % calculate delta, the angle from theta to alpha + alpha theta sub lfigfixangle + + % calculate the angle which is the multiple of 360/num closest to delta + 360 num div div truncate 360 num div mul theta add /anglea exch def + + % calculate the next multiple of 360/num after anglea + anglea 360 num div add /angleb exch def + + % intersect the line through these two points with the alpha line + anglea cos anglea sin angleb cos angleb sin + 0 0 alpha cos 2 mul alpha sin 2 mul + lfiglineintersect radius lfigpmul + + end + % (Leaving lfigpolycircum) lfigdebugprint +} def + +% find point of intersection of a point and a circle +% x0 y0 r x1 y1 theta lfigcircleintersect xa ya xb yb 2 +% or xb yb 1 +% or 0 +/lfigcircleintersect +{ + % (Entering lfigcircleintersect) lfigdebugprint + 15 dict begin + /theta exch def + /y1 exch def + /x1 exch def + /r exch def + /y0 exch def + /x0 exch def + + % if sin(theta) = 0 then line is horizontal and y must be y1 + theta sin abs 0.00001 lt + { + /a 1 def + /b -2 x0 mul def + /c x0 dup mul y1 y0 sub dup mul add r dup mul sub def + a b c lfigqroots dup + 0 eq + { pop + 0 + } + { 1 eq + { y1 1 + } + { y1 exch y1 2 + } ifelse + } ifelse + } + { + /ct theta cos theta sin div def + /a ct ct mul 1 add def + /b ct x1 x0 sub mul y1 add y0 sub 2 mul def + /c x1 x0 sub dup mul y1 y0 sub dup mul add r dup mul sub def + a b c lfigqroots dup + 0 eq + { pop + 0 + } + { 1 eq + { y1 add /yb exch def + yb y1 sub ct mul x1 add /xb exch def + xb yb 1 + } + { y1 add /ya exch def + ya y1 sub ct mul x1 add /xa exch def + y1 add /yb exch def + yb y1 sub ct mul x1 add /xb exch def + xa ya xb yb 2 + } ifelse + } ifelse + } ifelse + end + % (Leaving lfigcircleintersect) lfigdebugprint +} def + +% add CIRCUM operator with this body: lfigcircumdef - +/lfigcircumdef +{ % (Entering lfigcircumdef) lfigdebugprint + /CIRCUM exch cvx + currentdict end + 3 1 roll + % currentdict length currentdict maxlength lt + % { def } + % { exec moveto (too many labels) show stop } + % ifelse + def + begin + % (Leaving lfigcircumdef) lfigdebugprint +} def + +end +%%EndResource + +%%BeginResource: procset LoutGraphPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/graphf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Graph (Version 1.0) % +% % +% Version 1.0 by Jeffrey H. Kingston, December 1993. % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +errordict begin + /handleerror + { + { /Times-Roman findfont 8 pt scalefont setfont + 0 setgray 4 pt 4 pt moveto + $error /errorname get + dup lgraphdict exch known + { lgraphdict exch get } + { 30 string cvs } ifelse + show + ( Command: ) show + $error /command get 30 string cvs show + } stopped {} if + showpage stop + } def +end + +/lgraphdict 200 dict def +lgraphdict begin + +% error messages +/dictfull (dictfull error) def +/dictstackoverflow (dictstackoverflow error) def +/execstackoverflow (execstackoverflow error: expression too complex?) def +/limitcheck (limitcheck error: graph too complex or too large?) def +/syntaxerror (syntaxerror error: syntax error in text of graph?) def +/typecheck (typecheck error: syntax error in text of graph?) def +/undefined (undefined error: unknown or misspelt symbol?) def +/rangecheck (rangecheck error: undefined expression (e.g. divide by zero)?) def +/VMError (VMError error: run out of memory?) def + +% random number between x and y inclusive: x y dorand num +/dorand { 1 index sub 1 add rand exch mod add } def + +% log to given base: base num dolog num +/dolog { ln exch ln div } def + +% maximum of two numbers: max +/max { 2 copy gt { pop } { exch pop } ifelse } def + +% add two points: padd +/padd { exch 3 1 roll add 3 1 roll add exch } def + +% subtract first point from second: psub +/psub { 3 2 roll sub 3 1 roll exch sub exch } def + +% distance between two points: distance +/distance { psub dup mul exch dup mul add sqrt } def + +% point at angle and distance: atangle +/atangle { 2 copy cos mul 3 1 roll sin mul padd } def + +% angle from one point to another: angle +/angle { psub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def + + +% set up for line +% - linesetup +/linesetup +{ newpath + xcurr ycurr trpoint xprev yprev trpoint + 4 copy moveto lineto distance dashlength +} def + +% set up for icon-avoiding line +% - ilinesetup +/ilinesetup +{ newpath + xprev yprev trpoint xcurr ycurr trpoint 4 copy + 4 copy angle symbolsize 1.5 mul exch 4 2 roll pop pop atangle + 6 2 roll 4 2 roll + 4 copy angle symbolsize 1.5 mul exch 4 2 roll pop pop atangle + 4 copy moveto lineto distance dashlength +} def + + +% stroke a solid line: solid - +/solid +{ pop pop [] 0 setdash linewidth setlinewidth stroke +} def + +% stroke a dashed line: dashed - +/dashed +{ 2 copy 2 mul le 1 index 0 le or + { exch pop 1 pt max [ exch dup ] 0 setdash } + { dup [ exch 4 2 roll 2 copy div + 1 sub 2 div ceiling dup 4 1 roll + 1 add mul sub exch div ] 0 setdash + } ifelse linewidth setlinewidth stroke +} def + +% stroke a cdashed line: cdashed - +/cdashed +{ 2 copy le 1 index 0 le or + { exch pop 1 pt max [ exch dup ] dup 0 get 2 div setdash } + { dup [ 4 2 roll exch 2 copy exch div + 2 div ceiling div 1 index sub + ] exch 2 div setdash + } ifelse linewidth setlinewidth stroke +} def + +% stroke a dotted line: dotted - +/dotted +{ 2 copy le 1 index 0 le or + { exch pop 1 pt max [ exch 0 exch ] 0 setdash } + { 1 index exch div ceiling div 0.99999 mul + [ 0 3 2 roll ] 0 setdash + } ifelse gsave 1 setlinecap linewidth setlinewidth stroke grestore newpath +} def + +% stroke a noline line: noline - +/noline +{ pop pop +} def + +% stroke a y histogram: - yhisto - +/yhisto +{ xprev yleft trpoint yextra sub moveto + xprev yprev trpoint lineto + xcurr yprev trpoint lineto + xcurr yleft trpoint yextra sub lineto + linewidth setlinewidth stroke +} def + +% stroke an x histogram: - xhisto - +/xhisto +{ xleft yprev trpoint exch xextra sub exch moveto + xcurr yprev trpoint lineto + xcurr ycurr trpoint lineto + xleft ycurr trpoint exch xextra sub exch lineto + linewidth setlinewidth stroke +} def + +% stroke a surface y histogram: - surfaceyhisto - +/surfaceyhisto +{ firstpair + { xprev yleft trpoint yextra sub moveto + xprev yprev trpoint lineto + } + { xprev yprev trpoint moveto + } ifelse + xcurr yprev trpoint lineto + lastpair + { xcurr yleft trpoint yextra sub lineto + } + { xcurr ycurr trpoint lineto + } ifelse + linewidth setlinewidth stroke +} def + +% stroke a surface x histogram: - surfacexhisto - +/surfacexhisto +{ firstpair + { xleft yprev trpoint exch xextra sub exch moveto + } + { xprev yprev trpoint moveto + } ifelse + xcurr yprev trpoint lineto + xcurr ycurr trpoint lineto + lastpair + { xleft ycurr trpoint exch xextra sub exch lineto + } if + linewidth setlinewidth stroke +} def + +% stroke a filled y histogram: - filledyhisto - +/filledyhisto +{ + linewidth setlinewidth + xprev yleft trpoint exch currentlinewidth 2 div add exch yextra sub moveto + xprev yprev trpoint exch currentlinewidth 2 div add exch lineto + xcurr yprev trpoint exch currentlinewidth 2 div sub exch lineto + xcurr yleft trpoint exch currentlinewidth 2 div sub exch yextra sub lineto + closepath fill +} def + +% stroke a filled x histogram: - filledxhisto - +/filledxhisto +{ + linewidth setlinewidth + xleft yprev trpoint currentlinewidth 2 div add exch xextra sub exch moveto + xcurr yprev trpoint currentlinewidth 2 div add lineto + xcurr ycurr trpoint currentlinewidth 2 div sub lineto + xleft ycurr trpoint currentlinewidth 2 div sub exch xextra sub exch lineto + closepath fill +} def + + +% cross: show a small cross +/cross +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg symbolsize neg rmoveto + symbolsize 2 mul symbolsize 2 mul rlineto + 0 symbolsize -2 mul rmoveto + symbolsize -2 mul symbolsize 2 mul rlineto + [] 0 setdash stroke +} def + +% plus: show a small plus +/plus +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg 0 rmoveto + symbolsize 2 mul 0 rlineto + symbolsize neg symbolsize neg rmoveto + 0 symbolsize 2 mul rlineto + [] 0 setdash stroke +} def + +% square: show a small square +/square +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg symbolsize neg rmoveto + symbolsize 2 mul 0 rlineto + 0 symbolsize 2 mul rlineto + symbolsize -2 mul 0 rlineto + closepath [] 0 setdash stroke +} def + +% filledsquare: show a small filled square +/filledsquare +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg symbolsize neg rmoveto + symbolsize 2 mul 0 rlineto + 0 symbolsize 2 mul rlineto + symbolsize -2 mul 0 rlineto + closepath gsave [] 0 setdash stroke grestore fill +} def + +% diamond: show a small diamond +/diamond +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg 0 rmoveto + symbolsize symbolsize neg rlineto + symbolsize symbolsize rlineto + symbolsize neg symbolsize rlineto + closepath [] 0 setdash stroke +} def + +% filleddiamond: show a small filled diamond +/filleddiamond +{ newpath + xcurr ycurr trpoint moveto + symbolsize neg 0 rmoveto + symbolsize symbolsize neg rlineto + symbolsize symbolsize rlineto + symbolsize neg symbolsize rlineto + closepath gsave [] 0 setdash stroke grestore fill +} def + +% circle: show a small circle +/circle +{ newpath + xcurr ycurr trpoint symbolsize 0 360 arc [] 0 setdash stroke +} def + +% filledcircle: show a small filled circle +/filledcircle +{ newpath + xcurr ycurr trpoint symbolsize 0 360 arc gsave [] 0 setdash stroke grestore fill +} def + +% triangle: show a small triangle +/triangle +{ newpath + xcurr ycurr trpoint moveto + 0 symbolsize 1.5 mul rmoveto + symbolsize neg symbolsize -2.5 mul rlineto + symbolsize 2 mul 0 rlineto + closepath [] 0 setdash stroke +} def + +% filledtriangle: show a small filled triangle +/filledtriangle +{ newpath + xcurr ycurr trpoint moveto + 0 symbolsize 1.5 mul rmoveto + symbolsize neg symbolsize -2.5 mul rlineto + symbolsize 2 mul 0 rlineto + closepath gsave [] 0 setdash stroke grestore fill +} def + + +%plog: like log only with a base, and protected from failing if <= 0 +% base x plog res +/plog { dup 0 le { pop pop 0 } { ln exch ln div } ifelse } def + +% xtr: transform one x value logarithmically if xlog > 1 +% xtr +/xtr +{ xlog 1 gt + { xlog exch plog + } if +} def + +% ytr: transform one y value logarithmically if ylog > 1 +% ytr +/ytr +{ ylog 1 gt + { ylog exch plog + } if +} def + +% % trpoint: transform (x, y) in graph space into (x', y') in print space +% % x y trpoint x' y' +% /trpoint +% { exch xtr trxmin sub trxmax trxmin sub div xwidth mul xextra add +% exch ytr trymin sub trymax trymin sub div ywidth mul yextra add +% } def + + +% trpoint: transform (x, y) in graph space into (x', y') in print space +% x y trpoint x' y' +/trpoint +{ exch xtr xdecr { trxmax exch sub } { trxmin sub } ifelse + trxmax trxmin sub div xwidth mul xextra add + + exch ytr ydecr { trymax exch sub } { trymin sub } ifelse + trymax trymin sub div ywidth mul yextra add +} def + + +% yonly: interpolate x values 1, 2, ... into data +% [ data ] yonly [ newdata ] +/yonly +{ dup /tmp exch def + length [ exch 1 exch 1 exch + { dup tmp exch 1 sub get + } for + ] +} def + +% xonly: interpolate y values 1, 2, ... into data +% [ data ] yonly [ newdata ] +/xonly +{ dup /tmp exch def + length [ exch 1 exch 1 exch + { dup tmp exch 1 sub get exch + } for + ] +} def + +% xandy: no interpolation of x or y values +% [ data ] xandy [ data ] +/xandy {} def + + +% expstringwidth: calculate width of string containing optional exponent +% expstringwidth +/expstringwidth +{ (^) search + { exch pop stringwidth pop exch stringwidth pop 0.7 mul add } + { stringwidth pop } + ifelse +} def + +% expstringshow: show string containing optional exponent +% expstringshow - +/expstringshow +{ (^) search + { exch pop show 0 0.5 ft rmoveto + gsave currentfont 0.7 scalefont setfont show grestore + } + { show + } + ifelse +} def + +% concatenate two strings: strconcat +/strconcat +{ 2 copy length exch length add string + dup 0 4 index putinterval + dup 3 index length 3 index putinterval + 3 1 roll pop pop +} def + +% lgen: generate one label automatically +% num lgen num string +/lgen { dup 20 string cvs } def + +% loglgen: generate one logarithmic label (with exponent) +% loglgen +/loglgen +{ 20 string cvs exch 20 string cvs + (^) strconcat exch strconcat +} def + + +% printxtick: print one x tick +% xpos printxtick - +/printxtick +{ newpath + yleft trpoint moveto 0 yextra neg rmoveto + 0 xticklength neg rlineto [] 0 setdash stroke +} def + +% printxlabel: print one x label +% (xlabel) xpos printxlabel - +/printxlabel +{ yleft trpoint moveto 0 yextra neg rmoveto + 0 xticklength neg rmoveto 0 0.9 ft neg rmoveto + xlog 1 gt { 0 0.3 ft neg rmoveto } if + dup expstringwidth -2 div 0 rmoveto expstringshow +} def + +% printytick: print one y tick +% ypos printytick - +/printytick +{ newpath + xleft exch trpoint moveto xextra neg 0 rmoveto + yticklength neg 0 rlineto [] 0 setdash stroke +} def + +% printylabel: print one y label +% (ylabel) ypos printylabel - +/printylabel +{ xleft exch trpoint moveto xextra neg 0 rmoveto + yticklength neg 0 rmoveto -0.3 ft -0.3 ft rmoveto + dup expstringwidth neg 0 rmoveto expstringshow +} def + +% printrtick: print one r tick +% ypos printrtick - +/printrtick +{ newpath + xright exch trpoint moveto xextra 0 rmoveto + rticklength 0 rlineto [] 0 setdash stroke +} def + +% printrlabel: print one r label +% (rlabel) ypos printrlabel - +/printrlabel +{ xright exch trpoint moveto xextra 0 rmoveto + rticklength 0 rmoveto 0.3 ft -0.3 ft rmoveto + expstringshow +} def + +% printticks: print ticks and labels +% /tickproc /labelproc [ tickandlabeldata ] min printticks - +/printticks +{ /prev exch def + { dup type dup dup /integertype eq exch /realtype eq or + { pop dup /prev exch def 2 index cvx exec + } + { /stringtype eq + { prev 2 index cvx exec + } + { pop + } ifelse + } ifelse + } forall + pop pop +} def + + +% printxaxistick: print one x axis tick +% xpos printxaxistick - +/printxaxistick +{ newpath + yaxis trpoint moveto 0 xticklength -2 div rmoveto + 0 xticklength rlineto [] 0 setdash stroke +} def + +% printxaxislabel: print one x axis label +% (xlabel) xpos printxaxislabel - +/printxaxislabel +{ yaxis trpoint moveto + 0 xticklength -2 div rmoveto 0 0.9 ft neg rmoveto + xlog 1 gt { 0 0.3 ft neg rmoveto } if + dup expstringwidth -2 div 0 rmoveto expstringshow +} def + +% printyaxistick: print one y axis tick +% ypos printyaxistick - +/printyaxistick +{ newpath + xaxis exch trpoint moveto + yticklength -2 div 0 rmoveto + yticklength 0 rlineto [] 0 setdash stroke +} def + +% printyaxislabel: print one y axis label +% (ylabel) ypos printyaxislabel - +/printyaxislabel +{ xaxis exch trpoint moveto + yticklength -2 div 0 rmoveto -0.3 ft -0.3 ft rmoveto + dup expstringwidth neg 0 rmoveto expstringshow +} def + + +% minmax - +% perform minv := min(minv, val); maxv := max(maxv, val) +% allowing for the possibility of minv, maxv, val being false (undefined) +/minmax +{ dup false eq + { pop } + { minv false eq + { dup /minv exch def /maxv exch def } + { dup minv lt + { /minv exch def } + { dup maxv gt + { /maxv exch def } + { pop } + ifelse + } ifelse + } ifelse + } ifelse +} def + +% ticksundef +% returns true iff the ticks array is undefined (one false entry) +/ticksundef +{ dup length 1 eq + { dup 0 get false eq + } + { false } + ifelse +} def + +% integral +% true if the number has an integral value +/integral { dup round eq } def + +% ticksep ticks xory alldata minval maxval axis base ticksandlimits ticks min max base +% ticksandlimits: sort out value of x or y ticks and limits and log base +/ticksandlimits +{ /base exch def + /minv false def + /maxv false def + + % min and max of user-supplied minval, maxval, and axis + minmax minmax minmax + + % min and max of data points + { 0 get dup dup length 1 sub 3 index exch 2 exch + { get minmax dup + } for pop pop + } forall + pop dup + + % min and max of tick values + { dup type /stringtype eq + { pop } { minmax } ifelse + } forall + + % fix minv and maxv if undefined (false) or equal + minv false eq + { /minv -1 def /maxv 1 def } + { minv maxv eq + { minv 0 lt + { /minv 2 minv mul def /maxv 0 def + } + { minv 0 eq + { /minv -1 def /maxv 1 def + } + { /minv 0 def /maxv 2 maxv mul def + } ifelse + } ifelse + } if + } ifelse + + % invent ticks if undefined + ticksundef + { pop /ticksep exch def + + % if base is reasonable and minv is positive, logarithmic ticks + base 1 gt minv 0 gt and + { + % get integral log of minv and maxv + /logminv base minv plog floor cvi def + /logmaxv base maxv plog ceiling cvi def + + % if minv close to base, make it 1; reset minv and maxv + logminv 1 eq logmaxv 4 ge and { /logminv 0 def } if + /minv base logminv exp def + /maxv base logmaxv exp def + + % ticks := [ base**logminv, ... , base**logmaxv ] + [ logminv 1 logmaxv + { dup base exch exp + exch base exch loglgen + } for + ] + } + { % non-logarithmic ticks + { + % fix tick separation if undefined (0) or too small + /base 0 def + /delta maxv minv sub def + ticksep delta 30 div le + { /ticksep 10 delta log 1 sub ceiling exp def + ticksep delta 2 div ge + { /ticksep ticksep 2 div def } + { ticksep delta 5 div lt + { /ticksep 2 ticksep mul def + } if + } ifelse + } if + + % adjust minv and maxv to be multiples of ticksep + /minv minv ticksep div floor ticksep mul def + /maxv maxv ticksep div ceiling ticksep mul def + /delta maxv minv sub def + + % if minv or maxv near zero, move to zero and redo + minv ticksep eq + { /minv 0 def } + { maxv ticksep neg eq { /maxv 0 def } { exit } ifelse + } ifelse + } loop + + % if minv, maxv, and ticksep are all integral, set "makeint" to true + /makeint minv integral maxv integral ticksep integral and and def + + % ticks := [ minv, minv+ticksep, ... , maxv ] + [ 0 1 delta ticksep div round + { ticksep mul minv add makeint { cvi } if lgen } + for + ] + } ifelse + } + { exch pop + } ifelse + minv maxv base +} def + +% xset: set up all data for x axis, including limits and ticks +% xticksep xticks 0 alldata xmin xmax xlog xextra xdecr xaxis xticklength xset - +/xset +{ /xticklength exch def + /xaxis exch def + /xdecr exch def + /xextra exch def + xaxis exch ticksandlimits + /xlog exch def /xmax exch def /xmin exch def /xticks exch def + /xleft xdecr { xmax } { xmin } ifelse def + /xright xdecr { xmin } { xmax } ifelse def + /xwidth xsize xextra 2 mul sub def + /trxmin xmin xtr def /trxmax xmax xtr def +} def + +% yset: set up all data for y axis, including limits and yticks +% yticksep yticks 0 alldata ymin ymax ylog yextra ydecr yaxis yticklength yset - +/yset +{ /yticklength exch def + /yaxis exch def + /ydecr exch def + /yextra exch def + yaxis exch ticksandlimits + /ylog exch def /ymax exch def /ymin exch def /yticks exch def + /yleft ydecr { ymax } { ymin } ifelse def + /yright ydecr { ymin } { ymax } ifelse def + /ywidth ysize yextra 2 mul sub def + /trymin ymin ytr def /trymax ymax ytr def +} def + +% rset: set up all data for y axis (again), but including limits and rticks +% rticksep rticks 0 alldata ymin ymax ylog yextra ydecr yaxis rticklength rset - +/rset +{ /rticklength exch def + /yaxis exch def + /ydecr exch def + /yextra exch def + yaxis exch ticksandlimits + /ylog exch def /ymax exch def /ymin exch def /rticks exch def + /yleft ydecr { ymax } { ymin } ifelse def + /yright ydecr { ymin } { ymax } ifelse def + /ywidth ysize yextra 2 mul sub def + /trymin ymin ytr def /trymax ymax ytr def +} def + +% norset: set up data for no rticks +% - norset - +/norset +{ /rticklength 0 def + /rticks [] def +} def + +% framestyle: print a frame around the graph +/framestyle +{ 0 0 moveto xsize 0 lineto xsize ysize lineto + 0 ysize lineto closepath stroke + /printxtick /printxlabel xticks xleft printticks + /printytick /printylabel yticks ymin printticks + /printrtick /printrlabel rticks ymin printticks +} def + +% nonestyle: print nothing around the graph +/nonestyle +{ +} def + +% axesstyle: print axes for the graph (unless axis values missing) +/axesstyle +{ + xaxis false eq yaxis false eq or + { framestyle } + { xaxis yaxis trpoint dup 0 exch moveto xsize exch lineto + dup 0 moveto ysize lineto stroke + /printxaxistick /printxaxislabel xticks xleft printticks + /printyaxistick /printyaxislabel yticks ymin printticks + } ifelse +} def + +% rundata: run all data sets +/rundata +{ alldata + { gsave + dup dup dup dup + 4 get /dopaint exch def + 3 get /initrun exch def + 2 get /pairs exch def + 1 get /points exch def + 0 get /data exch def + dopaint + { data length 4 ge + { initrun + newpath + data 0 get ymin trpoint yextra sub moveto + 0 2 data length 2 sub + { dup 1 add + data exch get /ycurr exch def + data exch get /xcurr exch def + xcurr ycurr trpoint lineto + } for + data dup length 2 sub get ymin trpoint yextra sub lineto + closepath fill + } if + } if + initrun + data length 2 ge + { + /xcurr data 0 get def + /ycurr data 1 get def + points + data length 4 ge + { 2 2 data length 2 sub + { /xprev xcurr def + /yprev ycurr def + dup dup 2 eq /firstpair exch def + data length 2 sub eq /lastpair exch def + dup 1 add + data exch get /ycurr exch def + data exch get /xcurr exch def + pairs + points + } for + } if + } if + grestore + } forall +} def + +end +%%EndResource + +%%BeginResource: procset LoutFigPrependGraphic +% @PrependGraphic file /export/home/6monthspace/jeff/lout.lib/include/diagf.lpg +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% % +% PostScript @SysPrependGraphic file for @Diag Jeffrey H. Kingston % +% Version 2.0 (includes CIRCUM label) September 1996 % +% % +% To assist in avoiding name clashes, the names of all symbols % +% defined here begin with "ldiag". However, this is not feasible % +% with user-defined labels and some labels used by users. % +% % +% is two numbers, a point. % +% is one number, a length % +% is one number, an angle in degrees % +% is one number, the preferred length of a dash % +% % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% + +errordict begin + /handleerror + { + { /Times-Roman findfont 8 pt scalefont setfont + 0 setgray 4 pt 4 pt moveto + $error /errorname get + dup ldiagdict exch known + { ldiagdict exch get } + { 50 string cvs } ifelse + show + ( Command: ) show + $error /command get 50 string cvs show + } stopped {} if + showpage stop + } def +end + +% begin diagram: ldiagbegin - +% must be defined outside ldiagdict since it loads it +/ldiagbegin +{ xsize 0 0 ysize ldiagdict begin + 5 -1 roll /ldiagmaxlabels exch def + (@Diag) ldiagpushtagdict + /OOY ldiagpointdef /OOX ldiagpointdef 0 0 /OOO ldiagpointdef +} def + +% end diagram: - ldiagend - +/ldiagend +{ ldiagpoptagdict end +} def + +% concat strings: ldiagconcat +% must be defined outside ldiagdict since used in ldiagpromotelabels +/ldiagconcat +{ 2 copy length exch length add string + dup 0 4 index putinterval + dup 3 index length 3 index putinterval + 3 1 roll pop pop +} def + +/ldiagdebugposy 432 def +/ldiagdebugposx 72 def + +% ldiagdebugprint - +% must be defined outside ldiagdict since used in arbitrary places +% print count or stack entries, which ever is the smaller +/ldiagdebugprint +{ + exch + gsave + initgraphics + ldiagdebugposy 72 lt + { /ldiagdebugposx ldiagdebugposx 144 add store + /ldiagdebugposy 432 store + } + { + /ldiagdebugposy ldiagdebugposy 12 sub store + } ifelse + ldiagdebugposx ldiagdebugposy moveto + /Times-Roman findfont 10 scalefont setfont + 0 setgray show + count 1 sub 2 copy lt { pop } { exch pop } ifelse 1 sub + 0 exch 1 exch + { + /ldiagdebugposy ldiagdebugposy 12 sub store + ldiagdebugposx 12 add ldiagdebugposy moveto + index 50 string cvs show + } for + grestore +} def + +/ldiagdict 200 dict def +ldiagdict begin + +% error messages +/dictfull (dictfull error: too many labels?) def +/dictstackoverflow (dictstackoverflow error: labels nested too deeply?) def +/execstackoverflow (execstackoverflow error: figure nested too deeply?) def +/limitcheck (limitcheck error: figure nested too deeply or too large?) def +/syntaxerror (syntaxerror error: syntax error in text of figure?) def +/typecheck (typecheck error: syntax error in text of figure?) def +/undefined (undefined error: unknown or misspelt label?) def +/VMError (VMError error: run out of memory?) def + +% push pi onto stack: - ldiagpi +/ldiagpi 3.14159 def + +% push e onto stack: - ldiage +/ldiage 2.71828 def + +% arc directions +/clockwise false def +/anticlockwise true def + +% test equality between two angles: ldiagangleeq +/ldiagangleeq { ldiagfixangle exch ldiagfixangle eq } def + +% test inequality between two angles: ldiaganglene +/ldiaganglene { ldiagangleeq not } def + +% maximum of two numbers: ldiagmax +/ldiagmax { 2 copy gt { pop } { exch pop } ifelse } def + +% minimum of two numbers: ldiagmin +/ldiagmin { 2 copy lt { pop } { exch pop } ifelse } def + +% add two points: ldiagpadd +/ldiagpadd +{ + % (Entering padd) 4 ldiagdebugprint + exch 3 1 roll add 3 1 roll add exch + % (Leaving padd) 2 ldiagdebugprint +} def + +% subtract first point from second: ldiagpsub +/ldiagpsub { 3 2 roll sub 3 1 roll exch sub exch } def + +% max two points: ldiagpmax +/ldiagpmax { exch 3 1 roll ldiagmax 3 1 roll ldiagmax exch } def + +% min two points: ldiagpmin +/ldiagpmin { exch 3 1 roll ldiagmin 3 1 roll ldiagmin exch } def + +% scalar multiplication: ldiagpmul +/ldiagpmul { dup 3 1 roll mul 3 1 roll mul exch } def + +% point at angle and distance: ldiagatangle +/ldiagatangle { 2 copy cos mul 3 1 roll sin mul ldiagpadd } def + +% angle from one point to another: ldiagangleto +/ldiagangleto { ldiagpsub 2 copy 0 eq exch 0 eq and {pop} {exch atan} ifelse } def + +% distance between two points: ldiagdistance +/ldiagdistance { ldiagpsub dup mul exch dup mul add sqrt } def + +% stroke a solid line: ldiagsolid - +/ldiagsolid +{ pop pop [] 0 setdash 1 setlinecap stroke +} def + +% stroke a dashed line: ldiagdashed - +/ldiagdashed +{ 2 copy div 2 le 1 index 0 le or + { exch pop 1 pt ldiagmax [ exch dup ] 0 setdash } + { dup [ exch 4 2 roll 2 copy div + 1 sub 2 div ceiling dup 4 1 roll + 1 add mul sub exch div ] 0 setdash + } ifelse 0 setlinecap stroke +} def + +% stroke a cdashed line: ldiagcdashed - +/ldiagcdashed +{ % (Entering ldiagcdashed) 2 ldiagdebugprint + 2 copy le 1 index 0 le or + { exch pop 1 pt ldiagmax [ exch dup ] dup 0 get 2 div setdash } + { dup [ 4 2 roll exch 2 copy exch div + 2 div ceiling div 1 index sub + ] exch 2 div setdash + } ifelse 0 setlinecap stroke + % (Leaving ldiagcdashed) 0 ldiagdebugprint +} def + +% stroke a dotted line: ldiagdotted - +/ldiagdotted +{ 2 copy le 1 index 0 le or + { exch pop 1 pt ldiagmax [ exch 0 exch ] 0 setdash } + { 1 index exch div ceiling div + [ 0 3 2 roll ] 0 setdash + } ifelse 1 setlinecap stroke +} def + +% stroke a noline line: ldiagnoline - +/ldiagnoline +{ pop pop +} def + +% painting (i.e. filling): - ldiagwhite - (etc.) +/ldiagnopaint { } def +/ldiagnochange { fill } def +/ldiagdarkblue { 0.0 0.0 0.5 setrgbcolor fill } def +/ldiagblue { 0.0 0.0 1.0 setrgbcolor fill } def +/ldiaglightblue { 0.5 0.5 1.0 setrgbcolor fill } def +/ldiagdarkgreen { 0.0 0.5 0.0 setrgbcolor fill } def +/ldiaggreen { 0.0 1.0 0.0 setrgbcolor fill } def +/ldiaglightgreen { 0.5 1.0 0.5 setrgbcolor fill } def +/ldiagdarkred { 0.5 0.0 0.0 setrgbcolor fill } def +/ldiagred { 1.0 0.0 0.0 setrgbcolor fill } def +/ldiaglightred { 1.0 0.5 0.5 setrgbcolor fill } def +/ldiagdarkcyan { 0.0 0.5 0.5 setrgbcolor fill } def +/ldiagcyan { 0.0 1.0 1.0 setrgbcolor fill } def +/ldiaglightcyan { 0.5 1.0 1.0 setrgbcolor fill } def +/ldiagdarkmagenta { 0.5 0.0 0.5 setrgbcolor fill } def +/ldiagmagenta { 1.0 0.0 1.0 setrgbcolor fill } def +/ldiaglightmagenta { 1.0 0.5 1.0 setrgbcolor fill } def +/ldiagdarkyellow { 0.5 0.5 0.0 setrgbcolor fill } def +/ldiagyellow { 1.0 1.0 0.0 setrgbcolor fill } def +/ldiaglightyellow { 1.0 1.0 0.5 setrgbcolor fill } def +/ldiagdarkgray { 0.2 0.2 0.2 setrgbcolor fill } def +/ldiaggray { 0.5 0.5 0.5 setrgbcolor fill } def +/ldiaglightgray { 0.8 0.8 0.8 setrgbcolor fill } def +/ldiagdarkgrey { 0.2 0.2 0.2 setrgbcolor fill } def +/ldiaggrey { 0.5 0.5 0.5 setrgbcolor fill } def +/ldiaglightgrey { 0.8 0.8 0.8 setrgbcolor fill } def +/ldiagblack { 0.0 0.0 0.0 setrgbcolor fill } def +/ldiagwhite { 1.0 1.0 1.0 setrgbcolor fill } def + +% shape and labels of the @Box symbol +/ldiagbox +{ + 0 0 /SW ldiagpointdef + xsize 0 /SE ldiagpointdef + xsize ysize /NE ldiagpointdef + 0 ysize /NW ldiagpointdef + SE 0.5 ldiagpmul /S ldiagpointdef + NW 0.5 ldiagpmul /W ldiagpointdef + W SE ldiagpadd /E ldiagpointdef + S NW ldiagpadd /N ldiagpointdef + NE 0.5 ldiagpmul /CTR ldiagpointdef + + 0 dg /S@ANGLE ldiagangledef + 45 dg /SE@ANGLE ldiagangledef + 90 dg /E@ANGLE ldiagangledef + 135 dg /NE@ANGLE ldiagangledef + 180 dg /N@ANGLE ldiagangledef + 225 dg /NW@ANGLE ldiagangledef + 270 dg /W@ANGLE ldiagangledef + 315 dg /SW@ANGLE ldiagangledef + + [ CTR NE ldiagpsub /ldiagboxcircum cvx ] ldiagcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @CurveBox symbol +% ldiagcurvebox +/ldiagcurvebox +{ + + % (Entering ldiagcurvebox) 1 ldiagdebugprint + ldiagdecodelength /cbmgn exch def + + xsize 0.5 mul ysize 0.5 mul /CTR ldiagpointdef + xsize 0.5 mul 0 /S ldiagpointdef + xsize ysize 0.5 mul /E ldiagpointdef + xsize 0.5 mul ysize /N ldiagpointdef + 0 ysize 0.5 mul /W ldiagpointdef + + cbmgn 0.293 mul cbmgn 0.293 mul /SW ldiagpointdef + xsize cbmgn 0.293 mul sub cbmgn 0.293 mul /SE ldiagpointdef + xsize cbmgn 0.293 mul sub ysize cbmgn 0.293 mul sub /NE ldiagpointdef + cbmgn 0.293 mul ysize cbmgn 0.293 mul sub /NW ldiagpointdef + + 0 dg /S@ANGLE ldiagangledef + 45 dg /SE@ANGLE ldiagangledef + 90 dg /E@ANGLE ldiagangledef + 135 dg /NE@ANGLE ldiagangledef + 180 dg /N@ANGLE ldiagangledef + 225 dg /NW@ANGLE ldiagangledef + 270 dg /W@ANGLE ldiagangledef + 315 dg /SW@ANGLE ldiagangledef + + [ xsize ysize 0.5 ldiagpmul cbmgn /ldiagcurveboxcircum cvx ] ldiagcircumdef + + cbmgn 0 + xsize cbmgn sub 0 + [ xsize cbmgn sub cbmgn ] + xsize cbmgn + xsize ysize cbmgn sub + [ xsize cbmgn sub ysize cbmgn sub ] + xsize cbmgn sub ysize + cbmgn ysize + [ cbmgn ysize cbmgn sub ] + 0 ysize cbmgn sub + 0 cbmgn + [ cbmgn cbmgn ] + cbmgn 0 + + % (Leaving ldiagcurvebox) 0 ldiagdebugprint +} def + +% shadow of the @ShadowBox symbol +% its shape and labels are done, somewhat inaccurately, with ldiagbox +% ldiagshadow - +/ldiagshadow +{ + /lfshm exch def + + lfshm 0 moveto + 0 lfshm neg rlineto + xsize 0 rlineto + 0 ysize rlineto + lfshm neg 0 rlineto + xsize 0 lineto + closepath fill + +} def + +% shape and labels of the @Square symbol +/ldiagsquare +{ + xsize ysize 0.5 ldiagpmul /CTR ldiagpointdef + CTR xsize xsize ysize ysize ldiagpmax 0.5 ldiagpmul ldiagpadd /NE ldiagpointdef + CTR 0 0 CTR NE ldiagdistance 135 ldiagatangle ldiagpadd /NW ldiagpointdef + CTR 0 0 CTR NE ldiagdistance 225 ldiagatangle ldiagpadd /SW ldiagpointdef + CTR 0 0 CTR NE ldiagdistance 315 ldiagatangle ldiagpadd /SE ldiagpointdef + SW 0.5 ldiagpmul SE 0.5 ldiagpmul ldiagpadd /S ldiagpointdef + NW 0.5 ldiagpmul NE 0.5 ldiagpmul ldiagpadd /N ldiagpointdef + SW 0.5 ldiagpmul NW 0.5 ldiagpmul ldiagpadd /W ldiagpointdef + SE 0.5 ldiagpmul NE 0.5 ldiagpmul ldiagpadd /E ldiagpointdef + + 0 dg /S@ANGLE ldiagangledef + 45 dg /SE@ANGLE ldiagangledef + 90 dg /E@ANGLE ldiagangledef + 135 dg /NE@ANGLE ldiagangledef + 180 dg /N@ANGLE ldiagangledef + 225 dg /NW@ANGLE ldiagangledef + 270 dg /W@ANGLE ldiagangledef + 315 dg /SW@ANGLE ldiagangledef + + [ CTR NE ldiagpsub /ldiagboxcircum cvx ] ldiagcircumdef + SW SE NE NW SW +} def + +% shape and labels of the @Diamond symbol +/ldiagdiamond +{ + xsize 0 0.5 ldiagpmul /S ldiagpointdef + 0 ysize 0.5 ldiagpmul /W ldiagpointdef + S W ldiagpadd /CTR ldiagpointdef + CTR W ldiagpadd /N ldiagpointdef + CTR S ldiagpadd /E ldiagpointdef + E N ldiagpadd 0.5 ldiagpmul /NE ldiagpointdef + N W ldiagpadd 0.5 ldiagpmul /NW ldiagpointdef + S W ldiagpadd 0.5 ldiagpmul /SW ldiagpointdef + S E ldiagpadd 0.5 ldiagpmul /SE ldiagpointdef + + 0 dg /S@ANGLE ldiagangledef + 90 dg /E@ANGLE ldiagangledef + 180 dg /N@ANGLE ldiagangledef + 270 dg /W@ANGLE ldiagangledef + S E ldiagangleto /SE@ANGLE ldiagangledef + E N ldiagangleto /NE@ANGLE ldiagangledef + N W ldiagangleto /NW@ANGLE ldiagangledef + W S ldiagangleto /SW@ANGLE ldiagangledef + + [ xsize ysize 0.5 ldiagpmul /ldiagdiamondcircum cvx ] ldiagcircumdef + S E N W S +} def + +% shape and labels of the @Ellipse symbol +/ldiagellipse +{ + xsize 0 0.5 ldiagpmul /S ldiagpointdef + 0 ysize 0.5 ldiagpmul /W ldiagpointdef + S W ldiagpadd /CTR ldiagpointdef + CTR W ldiagpadd /N ldiagpointdef + CTR S ldiagpadd /E ldiagpointdef + CTR xsize 0 0.3536 ldiagpmul ldiagpadd 0 ysize 0.3536 ldiagpmul ldiagpadd /NE ldiagpointdef + 0 ysize 0.3536 ldiagpmul CTR xsize 0 0.3536 ldiagpmul ldiagpadd ldiagpsub /SE ldiagpointdef + xsize 0 0.3536 ldiagpmul CTR ldiagpsub 0 ysize 0.3536 ldiagpmul ldiagpadd /NW ldiagpointdef + 0 ysize 0.3536 ldiagpmul xsize 0 0.3536 ldiagpmul CTR ldiagpsub ldiagpsub /SW ldiagpointdef + [ xsize ysize 0.5 ldiagpmul /ldiagellipsecircum cvx ] ldiagcircumdef + + 0 dg /S@ANGLE ldiagangledef + 90 dg /E@ANGLE ldiagangledef + 180 dg /N@ANGLE ldiagangledef + 270 dg /W@ANGLE ldiagangledef + + S E ldiagangleto /SE@ANGLE ldiagangledef + E N ldiagangleto /NE@ANGLE ldiagangledef + N W ldiagangleto /NW@ANGLE ldiagangledef + W S ldiagangleto /SW@ANGLE ldiagangledef + + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @Circle symbol +/ldiagcircle +{ + xsize ysize 0.5 ldiagpmul /CTR ldiagpointdef + CTR xsize 0 ysize 0 ldiagpmax 0.5 ldiagpmul ldiagpadd /E ldiagpointdef + CTR 0 0 CTR E ldiagdistance 45 ldiagatangle ldiagpadd /NE ldiagpointdef + CTR 0 0 CTR E ldiagdistance 90 ldiagatangle ldiagpadd /N ldiagpointdef + CTR 0 0 CTR E ldiagdistance 135 ldiagatangle ldiagpadd /NW ldiagpointdef + CTR 0 0 CTR E ldiagdistance 180 ldiagatangle ldiagpadd /W ldiagpointdef + CTR 0 0 CTR E ldiagdistance 225 ldiagatangle ldiagpadd /SW ldiagpointdef + CTR 0 0 CTR E ldiagdistance 270 ldiagatangle ldiagpadd /S ldiagpointdef + CTR 0 0 CTR E ldiagdistance 315 ldiagatangle ldiagpadd /SE ldiagpointdef + [ S E ldiagpsub /ldiagellipsecircum cvx ] ldiagcircumdef + + 0 dg /S@ANGLE ldiagangledef + 45 dg /SE@ANGLE ldiagangledef + 90 dg /E@ANGLE ldiagangledef + 135 dg /NE@ANGLE ldiagangledef + 180 dg /N@ANGLE ldiagangledef + 225 dg /NW@ANGLE ldiagangledef + 270 dg /W@ANGLE ldiagangledef + 315 dg /SW@ANGLE ldiagangledef + + S [ CTR ] E [ CTR ] N [ CTR ] W [ CTR ] S +} def + +% shape and labels of the @VLine and @VArrow symbols +/ldiagvline +{ + xmark ysize ldiagprevious /FROM ldiagpointdef + xmark 0 ldiagprevious /TO ldiagpointdef +} def + +% points of a polygon around base with given no of sides, vert init angle: +% ldiagpolygon ... +/ldiagpolygon +{ exch round cvi exch + xsize ysize 0.5 ldiagpmul /CTR ldiagpointdef + 90 sub CTR 2 copy ldiagmax 5 3 roll + [ 4 copy pop /ldiagpolycircum cvx ] ldiagcircumdef + exch dup 360 exch div exch + 1 1 3 2 roll + { 4 string cvs (P) exch ldiagconcat + 3 copy exch pop (@ANGLE) ldiagconcat cvn exch 90 add exch ldiagangledef + cvn 6 copy pop pop ldiagatangle 2 copy 10 2 roll + 3 2 roll ldiagpointdef + dup 3 1 roll add exch + } for + pop ldiagatangle +} def + +% shape and labels of the @Isosceles triangle symbol +/ldiagisosceles +{ + xsize ysize 0.5 ldiagpmul /CTR ldiagpointdef + 0 0 /SW ldiagpointdef + xsize 0 /SE ldiagpointdef + xsize 0.5 mul ysize /N ldiagpointdef + xsize 0.5 mul 0 /S ldiagpointdef + SE 0.5 ldiagpmul N 0.5 ldiagpmul ldiagpadd /NE ldiagpointdef + SW 0.5 ldiagpmul N 0.5 ldiagpmul ldiagpadd /NW ldiagpointdef + + [ xsize ysize /ldiagisoscelescircum cvx ] ldiagcircumdef + + 0 dg /SW@ANGLE ldiagangledef + 0 dg /SE@ANGLE ldiagangledef + 180 dg /N@ANGLE ldiagangledef + 0 dg /S@ANGLE ldiagangledef + SE N ldiagangleto /NE@ANGLE ldiagangledef + N SW ldiagangleto /NW@ANGLE ldiagangledef + + SW SE N SW +} def + +% next array element: ldiaggetnext true +% or false +/ldiaggetnext +{ 2 copy exch length ge + { false } + { 2 copy get exch 1 add exch true } ifelse +} def + +% check whether thing is number: ldiagisnumbertype +/ldiagisnumbertype +{ dup type dup + /integertype eq exch /realtype eq or +} def + +% check whether thing is an array: ldiagisarraytype +/ldiagisarraytype { dup type /arraytype eq } def + +% check whether thing is an array: ldiagisnametype +/ldiagisnametype { dup type /nametype eq } def + +% get next item: ldiaggetnextitem 0 +% or 1 +% or 2 +/ldiaggetnextitem +{ ldiaggetnext + { ldiagisarraytype + { 1 + } + { ldiagisnumbertype + { 3 1 roll + ldiaggetnext + { ldiagisnumbertype + { 4 3 roll exch 2 + } + { pop 3 2 roll pop 0 + } ifelse + } + { 3 2 roll pop 0 + } ifelse + } + { pop 0 + } ifelse + } ifelse + } + { 0 + } ifelse +} def + +% approximate equality: num1 num2 approxeq +/approxeq +{ dup 0 eq + { pop 0 eq + } + { dup 3 1 roll sub exch div abs 0.001 lt + } ifelse +} def + +% set arc path: bool x1 y1 x2 y2 x0 y0 ldiagsetarc +% the path goes from x1 y1 to x2 y2 about centre x0 y0, +% anticlockwise if bool is true else clockwise. +% The orientations of backwards pointing and forwards pointing +% arrowheads are returned in the two angles, and +% the length of the arc is returned in . +/ldiagsetarc +{ + % (Entering ldiagsetarc) 7 ldiagdebugprint + 20 dict begin + matrix currentmatrix 8 1 roll + 2 copy translate 2 copy 8 2 roll + 4 2 roll ldiagpsub 6 2 roll ldiagpsub + dup /y1 exch def dup mul /y1s exch def + dup /x1 exch def dup mul /x1s exch def + dup /y2 exch def dup mul /y2s exch def + dup /x2 exch def dup mul /x2s exch def + /dist1 0 0 x1 y1 ldiagdistance def + /dist2 0 0 x2 y2 ldiagdistance def + + y1s y2s approxeq + { -1 + } + { y1s x2s mul y2s x1s mul sub y1s y2s sub div + } ifelse + /da exch def + + x1s x2s approxeq + { -1 + } + { x1s y2s mul x2s y1s mul sub x1s x2s sub div + } ifelse + /db exch def + + da 0 gt db 0 gt and + { + % ( case 1, ellipse) 0 ldiagdebugprint + /LMax da sqrt db sqrt ldiagmax def + /scalex da sqrt LMax div def + /scaley db sqrt LMax div def + scalex scaley scale + 0 0 LMax + 0 0 x1 scalex mul y1 scaley mul ldiagangleto + 0 0 x2 scalex mul y2 scaley mul ldiagangleto + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + dup sin scaley mul exch cos scalex mul atan + 2 index 2 index + { 90 add } { 90 sub } ifelse + dup sin scaley mul exch cos scalex mul atan + 5 2 roll % res1 res2 ang1 ang2 anticlockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if ldiagpi mul LMax mul 180 div + } + { + dist1 dist2 approxeq + % x1 y1 dist1 ( x1 y1, d) 3 ldiagdebugprint pop pop pop + % x2 y2 dist2 ( x2 y2, d) 3 ldiagdebugprint pop pop pop + { + % ( case 2, circle) 0 ldiagdebugprint + 0 0 + dist1 + 0 0 x1 y1 ldiagangleto + 0 0 x2 y2 ldiagangleto + 2 copy eq { 360 add } if + 2 copy 8 2 roll + 5 index { arc } { arcn } ifelse + 2 index 1 index + { 90 sub } { 90 add } ifelse + 2 index 2 index + { 90 add } { 90 sub } ifelse + 5 2 roll % res1 res2 ang1 ang2 clockwise + { exch sub } { sub } ifelse + dup 0 le { 360 add } if + ldiagpi mul dist1 mul 180 div + } + { + % ( case 3, line) 0 ldiagdebugprint + x2 y2 lineto pop + x2 y2 x1 y1 ldiagangleto + x1 y1 x2 y2 ldiagangleto + x1 y1 x2 y2 ldiagdistance + } ifelse + } ifelse + 4 -1 roll setmatrix + end + % (Leaving ldiagsetarc) 3 ldiagdebugprint +} def + +% ldiagsetcurve: set up a Bezier curve from x0 y0 to x3 y3 +% and return arrowhead angles and length of curve (actually 0) +% x0 y0 x1 y1 x2 y2 x3 y3 ldiagsetcurve +/ldiagsetcurve +{ 8 copy curveto pop pop + ldiagangleto + 5 1 roll + 4 2 roll ldiagangleto + exch + 0 +} def + +% ldiagsetpath: convert a Diag path into a PostScript path +% [ shape ] ldiagsetpath +/ldiagsetpath +{ + 10 dict begin + 0 newpath + /prevseen false def + /curveseen false def + { ldiaggetnextitem + dup 0 eq { pop exit } + { 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /curveseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr + ldiagsetcurve pop pop pop + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + ldiagsetarc pop pop pop + } ifelse + } + { xcurr ycurr lineto + } ifelse + } + { xcurr ycurr moveto + } ifelse + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop pop pop + end +} def + +% ldiagpaintpath: paint a path of the given shape +% /paint [ shape ] ldiagpaintpath - +/ldiagpaintpath +{ + ldiagsetpath cvx exec +} def + +% stroke a path of the given shape in the given linestyle and dash length. +% Return the origin and angle of the backward and forward arrow heads. +% dashlength /linestyle [shape] ldiagdopath [ ] [ ] +/ldiagdopath +{ + 10 dict begin + 0 + /prevseen false def + /curveseen false def + /backarrow [] def + /fwdarrow [] def + { + ldiaggetnextitem + dup 0 eq { pop exit } + { + 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /prevseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { newpath xprev yprev moveto + curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr ldiagsetcurve + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + ldiagsetarc + } ifelse + } + { xcurr ycurr lineto + xcurr ycurr xprev yprev ldiagangleto dup 180 sub + xprev yprev xcurr ycurr ldiagdistance + } ifelse + 6 index 6 index cvx exec + [ xprev yprev 5 -1 roll ] + backarrow length 0 eq + { /backarrow exch def } + { pop } ifelse + [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def + } if + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop + pop pop pop pop + backarrow length 0 eq { [ 0 0 0 ] } { backarrow } ifelse + fwdarrow length 0 eq { [ 0 0 0 ] } { fwdarrow } ifelse + end +} def + + +% stroke a path of the given shape in the given linestyle and dash length. +% dashlength [ /linestyle ] [shape] ldiagdosegpath - +/ldiagdosegpath +{ + 12 dict begin + 1 index /seg exch def + 1 index length /seglength exch def + 0 /segcount exch def + 0 + /prevseen false def + /curveseen false def + /backarrow [] def + /fwdarrow [] def + { + ldiaggetnextitem + dup 0 eq { pop exit } + { + 1 eq + { /curveseen true def + /curve exch def + curve length 0 eq { /prevseen false def } if + } + { /ycurr exch def + /xcurr exch def + prevseen + { newpath xprev yprev moveto + curveseen + { curve length 4 eq + { xprev yprev + curve 0 get curve 1 get + curve 2 get curve 3 get + xcurr ycurr ldiagsetcurve + } + { xprev yprev xcurr ycurr + curve length 1 ge { curve 0 get } { 0 } ifelse + curve length 2 ge { curve 1 get } { 0 } ifelse + curve length 3 ge { curve 2 get } { true } ifelse + 7 1 roll + ldiagsetarc + } ifelse + } + { xcurr ycurr lineto + xcurr ycurr xprev yprev ldiagangleto dup 180 sub + xprev yprev xcurr ycurr ldiagdistance + } ifelse + 6 index seg segcount seglength mod get cvx exec + /segcount segcount 1 add def + [ xprev yprev 5 -1 roll ] + backarrow length 0 eq + { /backarrow exch def } + { pop } ifelse + [ xcurr ycurr 4 -1 roll ] /fwdarrow exch def + } if + /xprev xcurr def + /yprev ycurr def + /prevseen true def + /curveseen false def + } ifelse + } ifelse + } loop + pop pop pop pop + end +} def + +% ldiagnodebegin: start of node parameters +% ldiagnodebegin - +/ldiagnodebegin +{ % (Entering ldiagnodebegin) 0 ldiagdebugprint + ldiagmaxlabels dict begin +} def + +% ldiagnodeend: end of node parameters (so do the node) +%